curl --request GET \
  --url https://app.leadconduit.com/events/event-metrics/count_unique \
  --header 'Authorization: Basic <encoded-value>'

{
  "result": [
    {
      "value": [
        {
          "outcome": "<string>",
          "result": 123
        }
      ],
      "timeframe": {
        "start": "2023-11-07T05:31:56Z",
        "end": "2023-11-07T05:31:56Z"
      }
    }
  ]
}