{
  "manageEntity": {
    "action": "Update",
    "entityId": "947220579",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9e96abfc627446223643e9f657038f70bd462146cf5043ffc6e14fcfaa69a391",
    "signature": "0xbaa9fa4a8f849814930cfb1ac8aaa39b51f2e9c562fb58e6b87b87c64480e03204c85caeef8367dd87d0fab262dce14236729b33d3659d76231d75384a29d4161b",
    "signer": "0x7daE5eE30dFA8a8D8010115CA709Df867868420f",
    "userId": "947220579"
  }
}