{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0xb9da9f8255cb8f4c26918d22486942784b2f54f4322f5399d52d6829ea2675f0",
    "signature": "0xb457e9ecea3449ed82006cd308bfb9dce49db3352a1bb6ebb8de0b786f894e56652ef5e7d9b87f0487624b2ebc488b1463f236bce182dc4aad0a518c259cac161b",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}