fix

app/Transformers/Circle/CircleMemberTransformer.php

@@ -24,7 +24,8 @@ class CircleMemberTransformer extends TransformerAbstract
         return [
             'user' => $user?$user:new \stdClass(),
             'created_at' => Carbon::parse($interestCircleUser['created_at'])->toDateTimeString(),
-            'is_black' => $interestCircleUser['is_black']
+            'is_black' => $interestCircleUser['is_black'],
+            'circle_id' => $interestCircleUser['circle_id']
         ];
     }
 }