curl --request GET \
  --url https://api.hubapi.com/crm/v3/extensions/cards-dev/sample-response

{
  "totalCount": 1,
  "allItemsLinkUrl": "https://example.com/all-items-link-url",
  "cardLabel": "Tickets",
  "topLevelActions": {
    "settings": {
      "type": "IFRAME",
      "width": 640,
      "height": 480,
      "url": "https://example.com/iframe-contents",
      "label": "Edit",
      "propertyNamesIncluded": [
        "some_crm_property"
      ]
    },
    "primary": {
      "type": "IFRAME",
      "width": 640,
      "height": 480,
      "url": "https://example.com/primary-iframe",
      "label": "test_label_primary",
      "propertyNamesIncluded": []
    },
    "secondary": [
      {
        "type": "IFRAME",
        "width": 640,
        "height": 480,
        "url": "https://example.com/secondary-iframe",
        "label": "test_label_secondary",
        "propertyNamesIncluded": []
      }
    ]
  },
  "sections": [
    {
      "id": "123",
      "title": "API-22: APIs working too fast",
      "linkUrl": "http://example.com/1",
      "tokens": [
        {
          "name": "created",
          "label": "test_label",
          "dataType": "DATE",
          "value": "2016-08-04"
        }
      ],
      "actions": [
        {
          "type": "ACTION_HOOK",
          "httpMethod": "POST",
          "url": "https://example.com/action-hook-frame",
          "label": "action-hook-label",
          "propertyNamesIncluded": [
            "email",
            "firstName"
          ]
        },
        {
          "type": "ACTION_HOOK",
          "confirmation": {
            "prompt": "action-confirmation-body-prompt",
            "confirmButtonLabel": "Continue",
            "cancelButtonLabel": "Cancel"
          },
          "httpMethod": "POST",
          "url": "https://example.com/confirmation-action-hook",
          "label": "confirmation-hook-label",
          "propertyNamesIncluded": []
        },
        {
          "type": "IFRAME",
          "width": 640,
          "height": 480,
          "url": "https://example.com/iframe-action-label",
          "label": "iframe-action-label",
          "propertyNamesIncluded": [
            "property1",
            "property2",
            "property3"
          ]
        }
      ]
    }
  ],
  "responseVersion": "v3"
}