{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x53be0de17f409cb12e6db57ef03500c834ca4f12afd305d6f76e0dc61dce1c5f",
    "signature": "0x7078d3650a3bc3c52cdde3f6b6fb9d0c4960fb8d167c7719ddb8e20d3f16eb8246abfcef283c1f1c755c68f0453236a3b59c9e93d9da1b40f0e0e0344a715cfb1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}