diff --git a/bbb-graphql-actions/src/actions/userSendActivitySign.ts b/bbb-graphql-actions/src/actions/userSendActivitySign.ts
index e7c619bdf0..6c10dbc08f 100644
--- a/bbb-graphql-actions/src/actions/userSendActivitySign.ts
+++ b/bbb-graphql-actions/src/actions/userSendActivitySign.ts
@@ -1,5 +1,4 @@
 import { RedisMessage } from '../types';
-import {isModerator} from "../imports/validation";
 
 export default function buildRedisMessage(sessionVariables: Record<string, unknown>, input: Record<string, unknown>): RedisMessage {
   const eventName = `UserActivitySignCmdMsg`;