{
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    "mchid": "10000100",
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        "currency": "HKD",
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        "payer_currency": "CNY",
        "exchange_rate": {
            "type": "SETTLEMENT_RATE",
            "rate": 8000000
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    },
    "trade_type": "APP",
    "trade_state": "SUCCESS",
    "trade_state_desc": "支付成功",
    "bank_type": "CCB_DEBIT",
    "attach": "支付测试",
    "success_time": "2018-06-08T10:34:56+08:00",
    "promotion_detail": [
        {
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            "name": "单品惠-6",
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            "type": "DISCOUNT",
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            "activity_id": "931386",
            "wechatpay_contribute_amount": 1,
            "merchant_contribute_amount": 0,
            "other_contribute_amount": 0,
            "goods_detail": [
                {
                    "goods_id": "iphone6s_16G",
                    "goods_remark": "商品备注",
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        }
    ]
}