{
  "before": {
    "nonPrimaryEnvironment": true,
    "snapshot": [
      {
        "navStatus": {
          "_tag": "Success",
          "url": "http://127.0.0.1:18080/title-demo",
          "title": "Original title"
        }
      }
    ],
    "history": [
      {
        "url": "http://127.0.0.1:18080/title-demo",
        "title": "Original title"
      }
    ]
  },
  "guestBefore": {
    "title": "Original title",
    "url": "http://127.0.0.1:18080/title-demo"
  },
  "after": {
    "nonPrimaryEnvironment": true,
    "snapshot": [
      {
        "navStatus": {
          "_tag": "Success",
          "url": "http://127.0.0.1:18080/title-demo",
          "title": "Updated title 1"
        }
      }
    ],
    "history": [
      {
        "url": "http://127.0.0.1:18080/title-demo",
        "title": "Updated title 1"
      }
    ]
  },
  "guestAfter": {
    "title": "Updated title 1",
    "url": "http://127.0.0.1:18080/title-demo"
  }
}