{
  "manageEntity": {
    "action": "Update",
    "entityId": "354908",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaierajyilsfxq7qjcubqwjjy4vlpikrxujivjj4c32fpzo7zljwspjoxa\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":1288494577},{\"type\":\"playlist\",\"playlist_id\":1936117932},{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":66758},{\"type\":\"playlist\",\"playlist_id\":139335},{\"type\":\"playlist\",\"playlist_id\":140294347},{\"type\":\"playlist\",\"playlist_id\":1428}]}}}",
    "nonce": "0x02e2b04506aa27816bde049d55fedc93d8d051e2aceea24bf4e78c6653919c2f",
    "signature": "0x716cbb73524f531d12f1b0e9a1f166274f8d02c1e00192cd04c8ad33ac9223d8569208f0ed0bc0184d4f44ed712fe2f9d7e7836d7aaf5102ae25fb35b2c616251c",
    "signer": "0xcdc1772589e70ee6667FAaC93E3F0CcD5BFDa2aE",
    "userId": "354908"
  }
}