{
  "manageEntity": {
    "action": "Update",
    "entityId": "201996771",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7pbnbnxl5y7m26mq3smfdqme3cykiyiprh2lxwyhoafvnpb4phuq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":307500135}]}}}",
    "nonce": "0xa15edd91604ae3fe8ce7458c7a4b7f717fa22d822389cc5a0e9b2257dbc43b23",
    "signature": "0xf9e356a9818fdb906f3abd1bec9215d6f1da8f777c612854e849bfd87d68c5364669d9cb5f1291134a5c4ed65f9f60d84847c1381d23316ab84bed25aaba79091c",
    "signer": "0xd1CdfC852326b8427841805E9aA02D39705c750c",
    "userId": "201996771"
  }
}