Attributes
| sku | string | Sku |
| gtin | string | Product serial number (OPTIONAL) |
| name | string | Name |
| brand | string | Product Brand name (OPTIONAL) |
| price | Amount | Product price |
| category | string | Product main category (OPTIONAL) |
| quantity | integer | Quantity |
| subcategory | array | Product subcategories (OPTIONAL) |