{
    "out_trade_no": "121775250124070332",
    "sub_mchid": "1900000109",
    "appid": "wxd678efh567hg6787",
    "sub_appid": "wxd678efh567hg6999",
    "contract_id": "wxd678ef4Fwxd678ef4Fwxd678ef4F21",
    "description": "商品信息",
    "attach": "自定义数据",
    "goods_tag": "test",
    "highway_info": {
        "plate_number": "粤B888888",
        "start_time": "2017-08-26T09:43:39+08:00",
        "end_time": "2017-08-26T09:43:39+08:00",
        "channel_type": "ETC",
        "car_type": "CAR",
        "entrance": "沿江深圳-大铲湾",
        "exit": "广珠东线-珠海站",
        "carrying_capacity": 3,
        "carrying_range": "6-12"
    },
    "amount": {
        "total": 888,
        "currency": "CNY"
    },
    "device_info": {
        "device_id": "POS1:1",
        "device_ip": "123.12.12.123"
    }
}