Usage notes:

urls is required. URLs without a url_id will be created as new URLs. Any existing URLs that are not present in the urls array will be deleted.
When settings is not present, settings will not be modified.
When settings is present, they will override all existing settings.
settings.synthetic.test_times can be an empty array, which means the site will not have any scheduled testing.

Example request body:

{
  "name": "Radio NZ",
  "type": "competitor",
  "category": "News",
  "color": "#ff00ff",
  "urls": [
    {
      "url_id": 116412,
      "url": "https://www.rnz.co.nz/",
      "label": "Home"
    },
    {
      "url": "https://www.rnz.co.nz/programmes/the-detail/story/2018837367/so-long-dr-ashley-bloomfield",
      "label": "Article"
    }
  ],
  "settings": {
    "synthetic": {
      "regions": [
        {
          "region_id": "ap-southeast-2",
        }
      ],
      "test_profiles": [
        {
          "name": "Desktop Slow"
        },
        {
          "name": "Firefox"
        },
        {
          "name": "Mobile Slow"
        }
      ],
      "test_times": [
        {
          "time": "02:40"
        },
        {
          "time": "12:10"
        }
      ],
      "test_runs": 5
    }
  }
}