{
  "manageEntity": {
    "action": "Update",
    "entityId": "225600275",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9264e2d8f6f48f9fb894c7ea269fd2ecf34fde3b4604f29697ff4e0af5df48b7",
    "signature": "0x27eda1d2f12e0d7d42b46d90f9362272e4997d87d61ae7720e60e299ab6b92da0c667a7fb9b56253e8b51113f2f7da8d0dcd1fd8d5d84d7ae0ea991898f34e521b",
    "signer": "0x50b3a71C5800d09987e55a99E96a2eAd00574F4F",
    "userId": "225600275"
  }
}