topic,companyNumber,conferenceNumber,updateMethod,backgroundImagetype,backgroundImageValue
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/iot/v1/device/service/request/doorscreenBackgroundImageUpdate/CN-JHP-UBAINS/guxyobqblodf0n9q5pskdzz6hdk6cqyz,CN-JHP-UBAINS,guxyobqblodf0n9q5pskdzz6hdk6cqyz,restoreDefault,backgroundImageURL,https://ts1.tc.mm.bing.net/th/id/R-C.37aabedb102a084f5100c6f9a2ae3382?rik=J0mfKlnt7in7Nw&riu=http%3a%2f%2fpic3.bbzhi.com%2fshejibizhi%2fpetercuigao%2fdesign_jingmeisheji_240884_9.jpg&ehk=tnQr5MvuS%2fP4f9r5YN1iqtyPaSFiFKOg7bvmvbv9p6Y%3d&risl=&pid=ImgRaw&r=0
/iot/v1/device/service/request/doorscreenBackgroundImageUpdate/CN-JHP-UBAINS/guxyobqblodf0n9q5pskdzz6hdk6cqyz,CN-JHP-UBAINS,guxyobqblodf0n9q5pskdzz6hdk6cqyz,restoreDefault,backgroundImageBase64,data:image/jpeg;base64,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