{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x3afc73990c33c2b8a3be9cd251defd87ca1fae0115af6b71abb388f854566793",
    "signature": "0x492549cd18c02471ed8252054e88c34d445e031563f2b0ba4415011a769366e93b612594cef11b7e517064456f514cc5e0f6fad9ae99a77a8b14d91ba807048d1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}