{
    "sub_mchid": "1900000109",
    "sp_appid": "wx8888888888888888",
    "sub_appid": "wx8888888888888888",
    "transaction_id": "1217752501201407033233368018",
    "out_trade_no": "1217752501201407033233368018",
    "out_refund_no": "1217752501201407033233368018",
    "reason": "商品已售完",
    "amount": {
        "refund": 888,
        "total": 888,
        "currency": "CNY"
    },
    "notify_url": "https://weixin.qq.com",
    "refund_account": "REFUND_SOURCE_SUB_MERCHANT"
}