{"return_code":"FAIL","err_msg":"DATA_NOT_EMPTY","err_sub_msg":"Receive data is empty","nonce_str":"nmQmIQauQeBp11kpapMpnwNlOESgx9S9","timestamp":"2026-09-02 07:23:02","sign":"7f5d1c4c6a150401960820c6fe13407a"}