curl --request GET \
  --url https://http.us.breakcold.com/api/v1/crm/objects/{objectTypeId}/fields \
  --header 'Authorization: Bearer <token>'

{
  "fields": [
    {
      "id": "<string>",
      "workspaceId": "<string>",
      "objectTypeId": "<string>",
      "slug": "<string>",
      "name": "<string>",
      "fieldType": "<string>",
      "isSystem": true,
      "isRequired": true,
      "isHidden": true,
      "isMultiple": true,
      "isPrimary": true,
      "order": 123,
      "createdAt": 123,
      "updatedAt": 123,
      "description": "<string>",
      "isReadOnly": true,
      "showInCreateModal": true,
      "defaultValue": "<unknown>",
      "validation": {},
      "targetObjectTypeId": "<string>",
      "relationDefinitionId": "<string>",
      "notifyOnAssign": true,
      "defaultValueTemplate": "<string>",
      "isComputed": true,
      "computeExpression": "<string>",
      "isIdentifier": true
    }
  ]
}