curl --request GET \
  --url https://www.postable.com/api/v1/cards/{id} \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "id": 123,
    "name": "<string>",
    "slug": "<string>",
    "description": "<string>",
    "price": "<string>",
    "is_vertical": true,
    "artist": {
      "id": 123,
      "name": "<string>",
      "slug": "<string>"
    },
    "categories": [
      {
        "id": 123,
        "name": "<string>",
        "slug": "<string>"
      }
    ],
    "occasions": [
      {
        "id": 123,
        "name": "<string>",
        "slug": "<string>"
      }
    ],
    "tags": [
      "<string>"
    ],
    "images": [
      {
        "type": "<string>",
        "url": "<string>"
      }
    ],
    "customization_type": {
      "id": 123,
      "name": "<string>"
    }
  }
}