{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xbcfe1c275219e0551dbd4201d57383c0673ae115fa7d77cefe2d6d7756f7783a",
    "signature": "0x15e64b5a29ab3cbd1edd52580a5f5a91d22311028374f16d677fb30d2bcb0ae15d6ed343c8b49a2ca76c6d39129e0e9b9b5d82714cc094f27dac7689782105c01b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}