curl --request GET \
  --url https://app.masivo.ai/api/storefront/v1/campaigns \
  --header 'Authorization: Bearer <token>'

{
  "data": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "name": "<string>",
      "attributes": {},
      "content": {
        "Title": {
          "name": "Title",
          "type": "input",
          "value": "Value of the title"
        },
        "BannerImage": {
          "alt": "Alternative description for the image",
          "href": "Href link for the image",
          "name": "BannerImage",
          "type": "image",
          "value": "https://URL_TO_IMAGE"
        },
        "Description": {
          "name": "Name of the description",
          "type": "input",
          "value": "Value of the description"
        }
      },
      "template_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
    }
  ],
  "from": 0,
  "to": 9,
  "count": 10
}