项目背景是和三方平台做数据下发，为保证数据可追朔，将三方平台下方的报文(Json格式字符串)存储在Message.bizData节点下，样例如下。现在希望查询transOrderCode= 91011081818的数据,我应该如何编写查询语句？我尝试过find({"Message.bizData.transOrderCode":"91011081818"}),然而并不起作用。我该先把报文反序列化成objecjt,然后再存入bizData吗？

{
    "_id" : ObjectId("5be28b1167cdcb184310c75e"),
    "name" : "Best_mmg.Controllers.OrderController",
    "type" : "request",
    "datetime" : ISODate("2018-11-07T06:49:53.463Z"),
    "Message" : {
        "sign" : "bb3e894d17e069933f6dad7e19ced77f",
        "serviceType" : "KY_INSTALL_ORDER_CREATE_NOTIFY",
        "partnerID" : "SU_JIA",
        "bizData" : '{
    "partnerCode": "SU_JIA",
    "cpCode": "BESTQJT",
    "transOrderCode": "91011081818",
    "acceptPerson": "田铉政",
    "acceptPhone": "13560259167",
    "acceptProvince": "广东省",
    "acceptCity": "广州市",
    "acceptArea": "白云区",
    "acceptAddress": "金碧新城42栋307房",
    "acceptPostCode": null,
    "pickupSiteCode": "5100803",
    "pickupSiteName": "广州南送装点",
    "pickupSiteProvince": "广东省",
    "pickupSiteCity": "广州市",
    "pickupSiteArea": "白云区",
    "pickupSiteAddress": "广东省佛山市顺德区成业六路广辉玫瑰金厂（前进200米）百世快运陈村枢纽分拨",
    "pickupSitePerson": "何嘉威",
    "pickupSitePhone": "13925700028",
    "serviceType": "DISP_INSTALL",
    "packageAmount": "4",
    "packageCubic": "1.65",
    "packageWeight": "330.0",
    "isElevator": "false",
    "floor": "0",
    "salesPlatform": null,
    "salesOrder": null,
    "salesName": null,
    "salesPhone": null,
    "remark": null,
    "itemList": {
        "itemDetailList": [{
                "itemSKU": null,
                "itemCode": "01011010001",
                "itemName": "气压高箱类实木床",
                "amount": "1",
                "checkerID": null,
                "checkerName": "喵师傅",
                "checkCode": "246438497499365546",
                "remark": null,
                "imgUrl": null
            }

        ]
    },
    "addServiceList": {
        "addServiceDetailList": [

        ]
    }
}'
    }
}