diff --git a/config/test_config.yaml b/config/test_config.yaml
index 2e325fb..cc37107 100644
--- a/config/test_config.yaml
+++ b/config/test_config.yaml
@@ -5,29 +5,29 @@ chain_rpc_url: wss://columbus.camino.network/ext/bc/C/ws
 cheque_expiration_time: 18144000
 cm_account_address: 0xe55E387F5474a012D1b048155E25ea78C7DBfBBC
 db:
-  migrations_path: file://./migrations
-  name: camino_messenger_bot
-  path: supplier-bot.db
+    migrations_path: file://./migrations
+    name: camino_messenger_bot
+    path: supplier-bot.db
 developer_mode: true
 matrix:
-  host: messenger.chain4travel.com
-  store: supplier-matrix.db
+    host: messenger.chain4travel.com
+    store: supplier-matrix.db
 min_cheque_duration_until_expiration: 15552000
 network_fee_recipient_bot_address: 0xff6BAC3d972680515cbB59fCB6Db6deB13Eb0E91
 network_fee_recipient_cm_account: 0xF6bA5c68A505559c170dC7a30448Ed64D8b9Bc3B
 partner_plugin:
-  ca_file: ca-cert.pem
-  host: localhost:50051
-  unencrypted: true
+    ca_file: ca-cert.pem
+    host: localhost:50051
+    unencrypted: true
 response_timeout: 10000
 rpc_server:
-  cert_file: server-cert.pem
-  key_file: server-key.pem
-  port: 9090
-  unencrypted: true
+    cert_file: server-cert.pem
+    key_file: server-key.pem
+    port: 9090
+    unencrypted: true
 tracing:
-  cert_file: server-cert.pem
-  enabled: true
-  host: localhost:4317
-  insecure: true
-  key_file: server-key.pem
+    cert_file: server-cert.pem
+    enabled: true
+    host: localhost:4317
+    insecure: true
+    key_file: server-key.pem
diff --git a/examples/config/camino-messenger-bot-distributor-camino.yaml b/examples/config/camino-messenger-bot-distributor-camino.yaml
index 6404d78..6f15277 100644
--- a/examples/config/camino-messenger-bot-distributor-camino.yaml
+++ b/examples/config/camino-messenger-bot-distributor-camino.yaml
@@ -48,59 +48,59 @@ network_fee_recipient_cm_account: 0x16DFfB3911BB0b1B53eF4d774804381f0B38B5d7
 
 ### Database
 db:
-  # Path to migrations dir with sql up/down scripts. Schema is mandatory.
-  migrations_path: file://./migrations
+    # Path to migrations dir with sql up/down scripts. Schema is mandatory.
+    migrations_path: file://./migrations
 
-  # Database name.
-  name: camino_messenger_bot
+    # Database name.
+    name: camino_messenger_bot
 
-  # Path to database file.
-  path: distributor-bot.db
+    # Path to database file.
+    path: distributor-bot.db
 
 
 
 ### Matrix
 matrix:
-  # Hostname of the Matrix server
-  host: messenger.chain4travel.com
+    # Hostname of the Matrix server
+    host: messenger.chain4travel.com
 
-  # Local DB file to store Matrix data
-  store: distributor-matrix.db
+    # Local DB file to store Matrix data
+    store: distributor-matrix.db
 
 
 
 ### Partner Plugin (NOT USED FOR DISTRIBUTOR BOT)
 # partner_plugin:
-#   # Partner Plugin hostname and port, should be reachable from this machine.
-#   # Bot tries to connect to this host and port to relay messages that it receives from
-#   # the distributors through Matrix Server
-#   host: localhost:50051
+#     # Partner Plugin hostname and port, should be reachable from this machine.
+#     # Bot tries to connect to this host and port to relay messages that it receives from
+#     # the distributors through Matrix Server
+#     host: localhost:50051
 
-#   # TLS configuration
-#   unencrypted: true
+#     # TLS configuration
+#     unencrypted: true
 
-#   # Required if partner_plugin_unencrypted is false
-#   ca_file: ca-cert.pem
+#     # Required if partner_plugin_unencrypted is false
+#     ca_file: ca-cert.pem
 
 
 
 ### RPC server
 rpc_server:
-  # Listen on this port for incoming RPC requests
-  port: 9090
+    # Listen on this port for incoming RPC requests
+    port: 9090
 
-  # TLS configuration
-  unencrypted: true
+    # TLS configuration
+    unencrypted: true
 
-  cert_file: server-cert.pem
-  key_file: server-key.pem
+    cert_file: server-cert.pem
+    key_file: server-key.pem
 
 
 
 ### Tracing
 # tracing:
-#   cert_file: server-cert.pem
-#   enabled: true
-#   host: localhost:4317
-#   insecure: true
-#   key_file: server-key.pem
+#     cert_file: server-cert.pem
+#     enabled: true
+#     host: localhost:4317
+#     insecure: true
+#     key_file: server-key.pem
diff --git a/examples/config/camino-messenger-bot-distributor-columbus.yaml b/examples/config/camino-messenger-bot-distributor-columbus.yaml
index a60da79..6ea42f8 100644
--- a/examples/config/camino-messenger-bot-distributor-columbus.yaml
+++ b/examples/config/camino-messenger-bot-distributor-columbus.yaml
@@ -48,59 +48,59 @@ network_fee_recipient_cm_account: 0xF6bA5c68A505559c170dC7a30448Ed64D8b9Bc3B
 
 ### Database
 db:
-  # Path to migrations dir with sql up/down scripts. Schema is mandatory.
-  migrations_path: file://./migrations
+    # Path to migrations dir with sql up/down scripts. Schema is mandatory.
+    migrations_path: file://./migrations
 
-  # Database name.
-  name: camino_messenger_bot
+    # Database name.
+    name: camino_messenger_bot
 
-  # Path to database file.
-  path: distributor-bot.db
+    # Path to database file.
+    path: distributor-bot.db
 
 
 
 ### Matrix
 matrix:
-  # Hostname of the Matrix server
-  host: messenger.chain4travel.com
+    # Hostname of the Matrix server
+    host: messenger.chain4travel.com
 
-  # Local DB file to store Matrix data
-  store: distributor-matrix.db
+    # Local DB file to store Matrix data
+    store: distributor-matrix.db
 
 
 
 ### Partner Plugin (NOT USED FOR DISTRIBUTOR BOT)
 # partner_plugin:
-#   # Partner Plugin hostname and port, should be reachable from this machine.
-#   # Bot tries to connect to this host and port to relay messages that it receives from
-#   # the distributors through Matrix Server
-#   host: localhost:50051
+#     # Partner Plugin hostname and port, should be reachable from this machine.
+#     # Bot tries to connect to this host and port to relay messages that it receives from
+#     # the distributors through Matrix Server
+#     host: localhost:50051
 
-#   # TLS configuration
-#   unencrypted: true
+#     # TLS configuration
+#     unencrypted: true
 
-#   # Required if partner_plugin_unencrypted is false
-#   ca_file: ca-cert.pem
+#     # Required if partner_plugin_unencrypted is false
+#     ca_file: ca-cert.pem
 
 
 
 ### RPC server
 rpc_server:
-  # Listen on this port for incoming RPC requests
-  port: 9090
+    # Listen on this port for incoming RPC requests
+    port: 9090
 
-  # TLS configuration
-  unencrypted: true
+    # TLS configuration
+    unencrypted: true
 
-  cert_file: server-cert.pem
-  key_file: server-key.pem
+    cert_file: server-cert.pem
+    key_file: server-key.pem
 
 
 
 ### Tracing
 # tracing:
-#   cert_file: server-cert.pem
-#   enabled: true
-#   host: localhost:4317
-#   insecure: true
-#   key_file: server-key.pem
+#     cert_file: server-cert.pem
+#     enabled: true
+#     host: localhost:4317
+#     insecure: true
+#     key_file: server-key.pem
diff --git a/examples/config/camino-messenger-bot-supplier-camino.yaml b/examples/config/camino-messenger-bot-supplier-camino.yaml
index 57b70bd..6583438 100644
--- a/examples/config/camino-messenger-bot-supplier-camino.yaml
+++ b/examples/config/camino-messenger-bot-supplier-camino.yaml
@@ -48,59 +48,59 @@ network_fee_recipient_cm_account: 0x16DFfB3911BB0b1B53eF4d774804381f0B38B5d7
 
 ### Database
 db:
-  # Path to migrations dir with sql up/down scripts. Schema is mandatory.
-  migrations_path: file://./migrations
+    # Path to migrations dir with sql up/down scripts. Schema is mandatory.
+    migrations_path: file://./migrations
 
-  # Database name.
-  name: camino_messenger_bot
+    # Database name.
+    name: camino_messenger_bot
 
-  # Path to database file.
-  path: supplier-bot.db
+    # Path to database file.
+    path: supplier-bot.db
 
 
 
 ### Matrix
 matrix:
-  # Hostname of the Matrix server
-  host: messenger.chain4travel.com
+    # Hostname of the Matrix server
+    host: messenger.chain4travel.com
 
-  # Local DB file to store Matrix data
-  store: supplier-matrix.db
+    # Local DB file to store Matrix data
+    store: supplier-matrix.db
 
 
 
 ### Partner Plugin
 partner_plugin:
-  # Partner Plugin hostname and port, should be reachable from this machine.
-  # Bot tries to connect to this host and port to relay messages that it receives from
-  # the distributors through Matrix Server
-  host: localhost:50051
+    # Partner Plugin hostname and port, should be reachable from this machine.
+    # Bot tries to connect to this host and port to relay messages that it receives from
+    # the distributors through Matrix Server
+    host: localhost:50051
 
-  # TLS configuration
-  unencrypted: true
+    # TLS configuration
+    unencrypted: true
 
-  # Required if partner_plugin_unencrypted is false
-  ca_file: ca-cert.pem
+    # Required if partner_plugin_unencrypted is false
+    ca_file: ca-cert.pem
 
 
 
 ### RPC server
 rpc_server:
-  # Listen on this port for incoming RPC requests
-  port: 9090
+    # Listen on this port for incoming RPC requests
+    port: 9090
 
-  # TLS configuration
-  unencrypted: true
+    # TLS configuration
+    unencrypted: true
 
-  cert_file: server-cert.pem
-  key_file: server-key.pem
+    cert_file: server-cert.pem
+    key_file: server-key.pem
 
 
 
 ### Tracing
 # tracing:
-#   cert_file: server-cert.pem
-#   enabled: true
-#   host: localhost:4317
-#   insecure: true
-#   key_file: server-key.pem
+#     cert_file: server-cert.pem
+#     enabled: true
+#     host: localhost:4317
+#     insecure: true
+#     key_file: server-key.pem
diff --git a/examples/config/camino-messenger-bot-supplier-columbus.yaml b/examples/config/camino-messenger-bot-supplier-columbus.yaml
index 38b0bac..cf6dde2 100644
--- a/examples/config/camino-messenger-bot-supplier-columbus.yaml
+++ b/examples/config/camino-messenger-bot-supplier-columbus.yaml
@@ -48,59 +48,59 @@ network_fee_recipient_cm_account: 0xF6bA5c68A505559c170dC7a30448Ed64D8b9Bc3B
 
 ### Database
 db:
-  # Path to migrations dir with sql up/down scripts. Schema is mandatory.
-  migrations_path: file://./migrations
+    # Path to migrations dir with sql up/down scripts. Schema is mandatory.
+    migrations_path: file://./migrations
 
-  # Database name.
-  name: camino_messenger_bot
+    # Database name.
+    name: camino_messenger_bot
 
-  # Path to database file.
-  path: supplier-bot.db
+    # Path to database file.
+    path: supplier-bot.db
 
 
 
 ### Matrix
 matrix:
-  # Hostname of the Matrix server
-  host: messenger.chain4travel.com
+    # Hostname of the Matrix server
+    host: messenger.chain4travel.com
 
-  # Local DB file to store Matrix data
-  store: supplier-matrix.db
+    # Local DB file to store Matrix data
+    store: supplier-matrix.db
 
 
 
 ### Partner Plugin
 partner_plugin:
-  # Partner Plugin hostname and port, should be reachable from this machine.
-  # Bot tries to connect to this host and port to relay messages that it receives from
-  # the distributors through Matrix Server
-  host: localhost:50051
+    # Partner Plugin hostname and port, should be reachable from this machine.
+    # Bot tries to connect to this host and port to relay messages that it receives from
+    # the distributors through Matrix Server
+    host: localhost:50051
 
-  # TLS configuration
-  unencrypted: true
+    # TLS configuration
+    unencrypted: true
 
-  # Required if partner_plugin_unencrypted is false
-  ca_file: ca-cert.pem
+    # Required if partner_plugin_unencrypted is false
+    ca_file: ca-cert.pem
 
 
 
 ### RPC server
 rpc_server:
-  # Listen on this port for incoming RPC requests
-  port: 9090
+    # Listen on this port for incoming RPC requests
+    port: 9090
 
-  # TLS configuration
-  unencrypted: true
+    # TLS configuration
+    unencrypted: true
 
-  cert_file: server-cert.pem
-  key_file: server-key.pem
+    cert_file: server-cert.pem
+    key_file: server-key.pem
 
 
 
 ### Tracing
 # tracing:
-#   cert_file: server-cert.pem
-#   enabled: true
-#   host: localhost:4317
-#   insecure: true
-#   key_file: server-key.pem
+#     cert_file: server-cert.pem
+#     enabled: true
+#     host: localhost:4317
+#     insecure: true
+#     key_file: server-key.pem