{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x8875522605f5fbff262722722ee972238b924ddf1d7545af3e9c0ff4e23dcc6f",
    "signature": "0x0cdb2c384a9e0a965f7bf6b483139ac9678c650c10dbe855128053b734cd483d25da22a5fe004c3006316758d936c3f4165f40943f9fc0534cabce48f397dc071b",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}