protected void RequestForUserImageFinished(string _instanceID, IDictionary _dataDict)
        {
            User _user = NPObjectManager.GetObjectWithInstanceID <User>(_instanceID, NPObjectManager.eCollectionType.GAME_SERVICES);

            if (_user == null)
            {
                return;
            }

            // Invoke response handler
            _user.InvokeMethod(kUserRequestForImageFinished, new object[] {
                _dataDict
            }, new Type[] {
                typeof(IDictionary)
            });
        }