{
  "manageEntity": {
    "action": "Update",
    "entityId": "144255466",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieramirgiatg4k6uxzwxjkvqhy2hwh5wxiefcbn3z6csyjjwf5sjlkma\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1611755880}]}}}",
    "nonce": "0x4114787221caf10faf79d31fc1a5c826fc9c674adb9ff0ff0c9237cfbd9e4866",
    "signature": "0xb0e15acec5236d28d31d12a755d1d960841f94df09bd7beb6fde69eda803d0a8148189ddbfc90435eb3053399db34e07c0ba8a983880c2ead67911d644f3769c1b",
    "signer": "0x8AfE0DA8a4c98BBD8851Ee75209873b1eF046a27",
    "userId": "144255466"
  }
}