diff --git a/proto/identity/api/v1/identity.proto b/proto/identity/api/v1/identity.proto
index 09113b5..8c95fd1 100644
--- a/proto/identity/api/v1/identity.proto
+++ b/proto/identity/api/v1/identity.proto
@@ -52,6 +52,14 @@ service IdentityApi {
       body: "*"
     };
   }
+
+  // Subscribe to a stream of addresses associated and revoked from all inboxes on the network
+  rpc SubscribeAssociationChanges(SubscribeAssociationChangesRequest) returns (stream SubscribeAssociationChangesResponse) {
+    option (google.api.http) = {
+      post: "/identity/v1/subscribe-association-changes"
+      body: "*"
+    };
+  }
 }
 
 message VerifySmartContractWalletSignaturesRequest {
@@ -137,3 +145,27 @@ message GetInboxIdsResponse {
 
   repeated Response responses = 1;
 }
+
+// Request to subscribe to association changes, triggered by Identity Updates
+message SubscribeAssociationChangesRequest {}
+
+message SubscribeAssociationChangesResponse {
+  // A change in account_address -> inbox_id association
+  message AccountAddressAssociation {
+    string account_address = 1;
+    string inbox_id = 2;
+  }
+
+  // A revocation of an account_address -> inbox_id association
+  message AccountAddressRevocation {
+    string account_address = 1;
+    string inbox_id = 2;
+  }
+
+  uint64 timestamp_ns = 1;
+
+  oneof change {
+    AccountAddressAssociation account_address_association = 2;
+    AccountAddressRevocation account_address_revocation = 3;
+  }
+}