{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x3debb5bedfa25352aac62e902b483c4ee086cabf67d7bcd0f291a6bf18637e09",
    "signature": "0x9b90322eccd75e22a9992ca1e4c8d5c6be8ea261d5ee6b537fa92b1452775693680a54b7c3f60033c4ec32d7ce3b2933962f4747769b056304c4a3c945139b2f1b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}