diff --git a/app/home/service/NoticeService.php b/app/home/service/NoticeService.php
index 0cec05e6..b98ab998 100644
--- a/app/home/service/NoticeService.php
+++ b/app/home/service/NoticeService.php
@@ -5,12 +5,19 @@ use app\model\UserModel;
 
 class NoticeService extends BaseHomeService
 {
+    // 生成Beams Token, 注意：返回结果的格式必须是 {"token": "xxx"}  因为这个接口是当作回调函数给Pusher IOS SDK调用的
     public function generateToken($param): array
     {
         try {
             if (!isset($param['user_id'])) {
                 return [
-                    'token' => "",
+                    'token' => "缺少user_id",
+                ];
+            }
+            $user = UserModel::where(['user_id'=>$param['user_id']])->find();
+            if (empty($user)) {
+                return [
+                    'token' => "无效用户ID",
                 ];
             }
             // 生成Beams身份验证令牌