{
  "manageEntity": {
    "action": "Update",
    "entityId": "953141032",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x92c80213fc4e661b1472a138714c61d1871a6d931e4a2b05a8746623fbdc3628",
    "signature": "0x2f5ca30b53b36a7389904e81689672a33114855336ae91b9cda4711427cd413e0ea3f5359b165ea3d1ec668a37e0e5e0dce9462561ac1b20e9f37f001138694d1c",
    "signer": "0x0de69a50505F6FD476Ce68575aEbDec1b03F396F",
    "userId": "953141032"
  }
}