Sorry if I was wrong in some word because I do not speak this language
“Anything on market place can be used commercially.”
From Faq:
What can I do with content I obtain from the Marketplace and Learn tab?
Besides using this content for learning, experimenting, and prototyping, you can also ship it in your own products, too! However, you can’t sell or sublicense Marketplace content to other developers for use in their products, e.g. via website or e-commerce mechanism built into a 3D development tool.