code: public ApiResponse<ApiSuccessResponse> subscribeTopicWithHttpInfo(SubscribeTopicData subscribeTopicData) throws ApiException {
          com.squareup.okhttp.Call call = subscribeTopicValidateBeforeCall(subscribeTopicData, null, null);
          Type localVarReturnType = new TypeToken<ApiSuccessResponse>(){}.getType();
          return apiClient.execute(call, localVarReturnType);
      }
docs: subscribe to receive user events regarding specific topic(s).
  subscribe to receive user events regarding specific topic(s) from interaction server.
  @param subscribeTopicData  (required)
  @return ApiResponse&lt;ApiSuccessResponse&gt;
  @throws ApiException If fail to call the API, e.g. server error or cannot deserialize the response body