curl --request GET \
  --url https://agents.nineteen58.co.za/public-api/campaigns \
  --header 'x-api-key: <api-key>'

{
  "campaigns": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "<string>",
      "active": true,
      "steps": [
        {
          "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
          "name": "<string>",
          "step_number": 123
        }
      ]
    }
  ],
  "totalCount": 123,
  "currentPage": 123,
  "pageSize": 123,
  "totalPages": 123
}