{
"amount": "12.23",
"ext_param": "{\"order_title\":\"兑奖红包\"}",
"out_biz_no": "3142321423432",
"payee_account": "abc@sina.com",
"payee_real_name": "张三",
"payee_type": "ALIPAY_LOGONID",
"payer_real_name": "上海交通卡公司",
"payer_show_name": "上海交通卡退款",
"remark": "转账备注"
}