{
"notifyUrl": "string",
"sub_mchid": "string",
"pay_expire": 0,
"order_info": "string",
"order_amount": 0,
"fee_amount": 0,
"pay_time_type": "string",
"check_flag": "string",
"payer_info": {
"payer_id": "string",
"payer_type": "string",
"payer_accttype": "string",
"password": "string",
"random_key": "string",
"pap_agree_no": "string"
},
"payee_info": {
"linked_acctno": "string",
"agreement_no": "string",
"postscript": "string"
},
"risk_info": "string"
}