{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xff7bfc7ebe9845c14d0059841e62d9848707ad05fb1929efe4a1c48ef4b048e5",
    "signature": "0xbb7a6500b8a09cf88ab89a996a2c53e779b6ea0ee4a04eac6df8b77def4eae57430ab9f7c9d6fb613c9fb1cef3222a1a919b523dd9d4cf30f5082346fbacc9701c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}