{
  "manageEntity": {
    "action": "Update",
    "entityId": "633494619",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x60d1941f8dffec7ff2a9bc09e5fe19a9c06997b94ba7fcf06704bd609e3ffdde",
    "signature": "0x71058c670b7e97bd3df3062265cfcd60ba3b438871e57ab567011f4b4fc7671752563991ed60b6f19b45747ce25380a891e251ab73fdf4456cd529a5551be0231b",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}