{
  "manageEntity": {
    "action": "Update",
    "entityId": "259513372",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7slxg52lrjndh5b4z6a4lwu7qio4zv2zciq3yxouxpyoglruba3a\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":29595980}]}}}",
    "nonce": "0x4b0c830ccd087a7d6e65b3ff32eee7c35db09ff73f0af594a1a74c4543738104",
    "signature": "0x45552b6953323da93fd1e86e5c0495f0b42033c601212f5a25997efff7a2a2fe622efcf685b9f7ce123050859bc46a2d06a1470f3daab0057faaec76a349bf251c",
    "signer": "0x7deF33625A39F0c82e548F69aa14Db905C001F9B",
    "userId": "259513372"
  }
}