{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x7565e174b93706d86dfb5c20816b74ed7861ba79069babe4051f4386343ab07d",
    "signature": "0x117706d60ba1f1ac92d8f93e6fc8dcb87907bd909b61bf0a7859093fc2eb0b0523f8f17e7de3ec2c0ffd03b11aa0ceac846b9f905faa7cfc92af565b28471ef21b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}