{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x2d95028d59630c0c266064cf3c989951ccd53d2cfed5d5c96e2b0bf5e113f4c7",
    "signature": "0x8454b15393f14f8a8cac31e36bf459071117f74051ceb307bc5eedbfc8a41bae4e9e0dc8dd54972152d55dd621fd4d193b31afba690f3f519c98013517eb939b1c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}