{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x18445bd4a6f9b2c684b5c752fe92e864dabd5156a940909ad65d39f0f78684d8",
    "signature": "0xce3c8d13ea57f751aa9600ad3f729c4e7dbf2265cfe309a9b442945ec1ca5805546c14263681ef5afbd2f5e8e28bead4ed235b6c6d45d006b7b034a81e6165131c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}