{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x61dea43d103fed31042bc82857613839a7a946999366fce19e28af190b6c7bc6",
    "signature": "0xba0bdf712ad713a5c53fec39061e0d4c553e1fbfe7687be4a6516b61eb738182075aa25b3ee95c27b3c46f05b60493d3035b01c81d875720e91534b2595f47c41c",
    "signer": "0x7fB23CaDa61ACB0c4fCc650FDE57c3B812d4A5f4",
    "userId": "66130"
  }
}