{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x9862f408b62ccd23bdb52ce98b9d4a9d04dfdd42dfb672df315db43f4dc5d3d3",
    "signature": "0x8cd1a0ec99eabd748b8aa9efeaa7947d50f4a5c2184eac8f07100291fc4d7cac236ccd88e6dd3a04c6d7932ec51402fa929882afc23421fc3517e042be6c008b1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}