退款结果通知

{
    "refundId": "string",
    "tradeId": "string",
    "merTradeNo": "string",
    "userId": "string",
    "refundAmount": 0,
    "currency": "CNY",
    "amount": 0,
    "fee": 0,
    "feeCurrency": "CNY",
    "refundReason": "string",
    "status": "SUCCESS"
}