验证不通过或者参数错误

{
    "return_code": "FALL",
    "return_msg": "验证不通过",
    "sign": "6e18dfc643802a38d78568ba59333b5f"
}

成功返回格式

{
    "return_code": "SUCCESS",
    "return_msg": null,
    "result_code": "SUCCESS",
    "result_msg": "支付成功",
    "out_trade_no": "ali_scan20180908131617884480976",
    "trade_no": "2018090822001417660523379484",
    "total_amount": "1",
    "pay_amount": "1",
    "pay_time": "2018-09-08 13:16:19",
    "buyer_logon_id": "dmk***@ccmknt.com",
    "buyer_pay_amount": "1",
    "mdiscount_amount": "0",
    "discount_amount": "0",
    "sign": "d3c426543a13b0cf5329010081087f2e"
}