diff --git a/src/core/strings/constants/interface.constants.ts b/src/core/strings/constants/interface.constants.ts
index 827be18..08d1a7d 100644
--- a/src/core/strings/constants/interface.constants.ts
+++ b/src/core/strings/constants/interface.constants.ts
@@ -3,7 +3,7 @@ import { OPERATION } from './base.constants';
 
 export interface EventTopics {
   topic: any;
-  data?: IEvent;
+  data?: any;
 }
 
 export interface IEvent<Entity = any> {
@@ -15,3 +15,9 @@ export interface IEvent<Entity = any> {
   module: string;
   op: OPERATION;
 }
+
+export interface IEventAuth {
+  id: string;
+  type: string;
+  timestamp: number;
+}