diff --git a/proto/decentraland/kernel/apis/communications_controller.proto b/proto/decentraland/kernel/apis/communications_controller.proto
index ee2f3722..8e286eeb 100644
--- a/proto/decentraland/kernel/apis/communications_controller.proto
+++ b/proto/decentraland/kernel/apis/communications_controller.proto
@@ -11,8 +11,14 @@ message SendBinaryRequest {
   repeated bytes data = 1;
 }
 
+message SendBinaryToAddress {
+  bytes data = 1;
+  optional string address = 2;
+}
+
 message SendBinaryResponse {
   repeated bytes data = 1;
+  repeated SendBinaryToAddress message = 2;
 }
 
 service CommunicationsControllerService {