{
  "manageEntity": {
    "action": "Update",
    "entityId": "508307433",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xc938034e775ee24e3c8125456ed7a46283dee7600286b3af691764fc39206fda",
    "signature": "0x3aac972cad327adb5041d7f1831130da59bf857ee32a9e36ad2122d1128385474958b4a5299d37f15de464684f0ebf824681a07a300f70a8bf6f550ea714a3471b",
    "signer": "0x02aB27E032095c55Cc0aB50950Fc3460d0Ee5B1E",
    "userId": "508307433"
  }
}