{
  "manageEntity": {
    "action": "Update",
    "entityId": "205519424",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xf8c0055954baf59e67b5081868f1134ed2dd2c52d433edb559e51158853a8759",
    "signature": "0x3bf81df5a330aa75fd0014e2fdd15fc3c18dc472234e96b91af31345b525922d757aaf6f0c4db5a57b7622a65ac5ed4a8f34d8701697ae9aee4f9e15d221e6331b",
    "signer": "0x550c6F46bcff1AF639B42658cfe407879C2F0a35",
    "userId": "205519424"
  }
}