curl --request GET \
  --url https://api.spacebring.com/visitors/contacts/v1 \
  --header 'Authorization: Basic <encoded-value>'

{
  "contacts": [
    {
      "contact": {
        "createDate": "2023-11-07T05:31:56Z",
        "date": "2023-11-07T05:31:56Z",
        "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "locationRef": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "visitor": {
          "email": "<string>",
          "name": "<string>",
          "phoneNumber": "<string>",
          "surname": "<string>"
        }
      }
    }
  ],
  "nextPageToken": "<string>",
  "searchQueryNext": "<string>"
}