curl --request GET \
  --url https://app.manuscritten.com/api/public/company-data \
  --header 'X-API-KEY: <api-key>'

{
  "data": {
    "cardDesigns": [
      {
        "id": "a1",
        "name": "A5 Clásico"
      }
    ],
    "envelopeDesigns": [
      {
        "id": "b1",
        "name": "C5 Blanco"
      }
    ],
    "senders": [
      {
        "id": "c1",
        "name": "Oficina Madrid"
      }
    ],
    "signatures": [
      {
        "id": "d1",
        "name": "Firma CEO"
      }
    ]
  }
}