{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "538837114",
    "entityType": "Notification",
    "nonce": "0x8694cbf8524579dce59214e870c034a9d1f58d87d1e3126dbda1543e71b4c828",
    "signature": "0x72af1fcce8553ae66d692f38a39971c80f4fbe6b7622cbb3ffc19ce1f321fe7c73d64f071f811d4426c5ad9b95bf993392f20c90e62f37121f2c50c2f5f84e8f1c",
    "signer": "0x020819dBA653525cf3F8069104a51B241BfC46E1",
    "userId": "1967"
  }
}