{
    "mch_id": "10000098",
    "appid": "wxcbda96de0b165486",
    "nonce_str": "5K8264ILTKCH16CQ2502SI8ZNMTM67VS",
    "sign_type": "HMAC-SHA256",
    "sign": " EE088059BBC9141264F8D14293AD6C4BB94CEA8C08AA98FBF93E262D445F8FF5",
    "body": "公交代扣",
    "out_trade_no": "217752501201407033233368018",
    "total_fee": "888",
    "spbill_create_ip": "8.8.8.8",
    "notify_url": "http://yoursite.com/wxpay.html",
    "trade_scene": " PARKING",
    "version": "3.0",
    "scene_info": "{\"scene_info\":{\"start_time\":\"20170926114339\",\"end_time\":\"20170826114339\",\"charging_time\":3600,\"free_time\":1200,\"plate_number\":\"CB1000sdfasd\",\"car_type\":\"大型车\",\"parking_name\":\"欢乐海岸停车场\"}}"
}