通用请求数据模板

{
    "serial_number": "string",
    "merchant_number": "string",
    "sub_merchant_number": "string",
    "server_type": "string",
    "version": "string",
    "callback_process": 0,
    "data": {},
    "sensitive_data": {},
    "sign": "string",
    "return_info": "string",
    "extend_info": "string",
    "aeskey": "string"
}