curl --request GET \
  --url 'https://api.hubapi.com/media-bridge/v1/{appId}/settings/object-definitions/{mediaType}?hapikey='

{
  "objectTypeId": "<string>",
  "objectTypeName": "<string>",
  "properties": [
    {
      "objectTypeId": "<string>",
      "property": {
        "allowedObjectTypes": [
          {
            "innerId": 123,
            "metaTypeId": 123
          }
        ],
        "calculated": true,
        "canArchive": true,
        "canRestore": true,
        "createdAt": 123,
        "createdUserId": 123,
        "currencyPropertyName": "<string>",
        "dataSensitivity": "high",
        "dateDisplayHint": "absolute",
        "deleted": true,
        "description": "<string>",
        "displayMode": "all_unique_versions",
        "displayOrder": 123,
        "enforceMultivalueUniqueness": true,
        "externalOptions": true,
        "externalOptionsReferenceType": "<string>",
        "favorited": true,
        "favoritedOrder": 123,
        "fieldType": "<string>",
        "formField": true,
        "fromUserId": 123,
        "groupName": "<string>",
        "hasUniqueValue": true,
        "hidden": false,
        "hubspotDefined": true,
        "isCustomizedDefault": true,
        "isMultiValued": true,
        "isPartial": true,
        "label": "<string>",
        "mutableDefinitionNotDeletable": true,
        "name": "<string>",
        "numberDisplayHint": "currency",
        "optionSortStrategy": "ALPHABETICAL",
        "options": [
          {
            "description": "<string>",
            "displayOrder": 123,
            "doubleData": 123,
            "hidden": true,
            "label": "<string>",
            "readOnly": true,
            "value": "<string>"
          }
        ],
        "optionsAreMutable": true,
        "owningAppId": 123,
        "portalId": 123,
        "readOnlyDefinition": true,
        "readOnlyValue": true,
        "referencedObjectType": "ABANDONED_CART",
        "searchTextAnalysisMode": "NONE",
        "searchableInGlobalSearch": true,
        "sensitiveDataCategories": [
          "<string>"
        ],
        "showCurrencySymbol": true,
        "textDisplayHint": "domain_name",
        "type": "bool",
        "updatedAt": 123
      },
      "calculationExpression": {
        "operator": "CONSTANT_BOOLEAN",
        "propertyName": "<string>",
        "value": true
      },
      "calculationFormula": "<string>",
      "externalOptionsMetaData": {
        "relatedObjectTypeId": "<string>"
      },
      "fulcrumPortalId": 123,
      "fulcrumTimestamp": 123,
      "janusGroup": "<string>"
    }
  ],
  "propertyGroups": [
    {
      "displayName": "<string>",
      "displayOrder": 123,
      "fulcrumPortalId": 123,
      "fulcrumTimestamp": 123,
      "hubspotDefined": true,
      "name": "<string>"
    }
  ]
}