{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x18826c7b7572d49b6dd387d30362ceadc39b08e98d96acdab7e72230476191b8",
    "signature": "0x52a923faecef33f8f376fc16e7ec03a848380c6db6f2964e186326fe23f42a73275525af7f312033b2edd75e5fbd801b8f03d53af136dbd4aecdfd45d959b9d91c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}