{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xf8523df0fb2100938ffe2b4fe9f68a87b8cb9b35b86ab97ba28cdc35795eb17c",
    "signature": "0x71a37e0bbfd687be4304654ee933908dcb19f24ea1892e6fdc886e69e1c809f207030fb9e2a997f0714bd2fa5c60e6c1150b78de55ca902dfb02cf134e76a2d91b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}