{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x68452e77d97b999a94786057e5f5109fedc11e9019cc33f7d22e9c8f1f4d1321",
    "signature": "0x3e6eb33b56f37f7bc1231f4e08d327127b54d08dba53db2f626f03a5edd895ec1af6bff64e8f7c75762dada27278583632bb74c59bd6e8695bcb1e33b3ec6c9b1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}