curl --request POST \
  --url https://api.bold-factory.com/v1/items/properties \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "externalReference": "<string>"
}
'

{
  "id": "<string>",
  "externalReference": "<string>",
  "name": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "createdBy": "<string>",
  "lastModifiedAt": "2023-11-07T05:31:56Z",
  "lastModifiedBy": "<string>"
}