{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xa42f819ce805aa77d90dd3a305b07381cc66d2109bb40626a68d003404e087dc",
    "signature": "0x82a113bab025509d3a61030ef56ba7a2314194780e08ea3886a01b3cd6c23fe10a128bb0cee89953eaaaf29a219ef680ba45a257149d2670b62f5627165331461b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}