curl --request GET \
  --url https://api.hubapi.com/media-bridge/2026-03/{appId}/settings/object-definitions/{mediaType} \
  --header 'Authorization: Bearer <token>'

{
  "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>",
        "deleted": true,
        "description": "<string>",
        "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>",
        "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,
        "searchableInGlobalSearch": true,
        "sensitiveDataCategories": [
          "<string>"
        ],
        "showCurrencySymbol": true,
        "updatedAt": 123
      },
      "calculationExpression": {
        "operator": "CONSTANT_BOOLEAN",
        "propertyName": "<string>",
        "value": true
      },
      "calculationFormula": "<string>",
      "definitionSource": {
        "name": "<string>"
      },
      "extensionData": {
        "extensionStatusMap": {},
        "tags": [
          "<string>"
        ],
        "caseChangeTestExtensionData": {},
        "optionDecoratorsExtensionData": {
          "optionDecorators": {}
        },
        "requiredPropertiesExtensionData": {
          "isRequiredProperty": true
        },
        "softRequiredPropertiesExtensionData": {
          "isSoftRequiredProperty": true
        }
      },
      "externalOptionsMetaData": {
        "filter": {
          "includeHelpdeskRoutableTeamsOnly": true,
          "includeUnconfirmedUsers": true,
          "listProcessingTypes": [
            "<string>"
          ],
          "pipelineIds": [
            "<string>"
          ]
        },
        "relatedObjectTypeId": "<string>"
      },
      "fulcrumPortalId": 123,
      "fulcrumTimestamp": 123,
      "janusGroup": "<string>",
      "lookupAssociationSpec": {
        "associationSpec": {
          "associationTypeId": 123
        },
        "maxToObjectIds": 123,
        "toObjectTypeId": "<string>"
      },
      "permission": {
        "accessLevel": "<string>"
      },
      "propertyDefinitionSource": {
        "name": "<string>"
      },
      "propertyRequirements": {
        "gates": [
          "<string>"
        ],
        "scopeNames": [
          "<string>"
        ],
        "settings": [
          "<string>"
        ]
      },
      "rollupExpression": {
        "associationTypes": [
          {
            "associationTypeId": 123
          }
        ],
        "sourceObjectTypeId": "<string>",
        "sourcePropertyName": "<string>",
        "conditionalExpression": {
          "operator": "CONSTANT_BOOLEAN",
          "propertyName": "<string>",
          "value": true
        },
        "conditionalFormula": "<string>",
        "emptyRollupValue": "<string>",
        "sourceCompareByPropertyName": "<string>"
      }
    }
  ],
  "propertyGroups": [
    {
      "displayName": "<string>",
      "displayOrder": 123,
      "fulcrumPortalId": 123,
      "fulcrumTimestamp": 123,
      "hubspotDefined": true,
      "name": "<string>"
    }
  ],
  "schema": {
    "allowsSensitiveProperties": true,
    "createDatePropertyName": "<string>",
    "defaultSearchPropertyNames": [
      "<string>"
    ],
    "deleted": true,
    "fullyQualifiedName": "<string>",
    "hasCustomProperties": true,
    "hasDefaultProperties": true,
    "hasExternalObjectIds": true,
    "hasOwners": true,
    "hasPipelines": true,
    "id": 123,
    "indexedForFiltersAndReports": true,
    "lastModifiedPropertyName": "<string>",
    "metaTypeId": 123,
    "name": "<string>",
    "objectTypeId": "<string>",
    "objectTypeIdString": "<string>",
    "pipelinePropertyName": "<string>",
    "pipelineStagePropertyName": "<string>",
    "requiredProperties": [
      "<string>"
    ],
    "restorable": true,
    "scopeMappings": [
      {
        "scopeName": "<string>"
      }
    ],
    "secondaryDisplayLabelPropertyNames": [
      "<string>"
    ],
    "accessScopeName": "<string>",
    "createdAt": 123,
    "description": "<string>",
    "integrationAppId": 123,
    "janusGroup": "<string>",
    "ownerPortalId": 123,
    "pipelineCloseDatePropertyName": "<string>",
    "pipelineTimeToClosePropertyName": "<string>",
    "pluralForm": "<string>",
    "primaryDisplayLabelPropertyName": "<string>",
    "readScopeName": "<string>",
    "singularForm": "<string>",
    "visibilities": [],
    "writeScopeName": "<string>"
  }
}