{
  "manageEntity": {
    "action": "Update",
    "entityId": "330409911",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaieradr2bsxo2sivykjspkg4n44bvvyckrwada77fsxql77hegqyzigkq\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281},{\"type\":\"playlist\",\"playlist_id\":1795117483}]}}}",
    "nonce": "0xf397d75c20417367f690392a76488bc2721290bed0504cd0197d1b07957dfd52",
    "signature": "0xf70fc27a52aa7e464d9199c8a501dfed6bbca100a74f78e571d6df8904e166ab2ef3e47dd2e1c20a13d9c4aeb362aa1e2e5fd51417efdaa7ec2d621b6baf7dee1b",
    "signer": "0x55ADD358aa95419E72E26Ef1469945773C7615EE",
    "userId": "330409911"
  }
}