{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x57350617ac03ba0868436f9e2207b68514850b199c0f97b76f82ff8c62a14931",
    "signature": "0xbc7bade55116eec3109e8bd80b4936f708fe1054ba65e91639acb8daf3464c0378b50700d52b1ab4b9d7eabab8d7863aaf3b9d284945ee7991a5925e6fa46f661b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}