{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xf9ff80cbf9e3e0cfba3bbe000a09feaa83ce1ec6b76bd03af77ee8d4d4715c9b",
    "signature": "0xa191980547b2bf997606eba6c0e125f2fa560856aa3f3ad9365a655abb2be0f344eaf03d265d32ccbe0a33fdaaa89e6a7ef9b8ca8a1531b708ecba667ec4b6281c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}