It seems to me that no one is really interested in this project so far.

It just seems to you, the level of interest is good, dont worry about it.

I just cant see a line of investors who want to get URA tokens.

Then visit the site and see that the project already has 179 investors. And these are big investors.

In addition, daily market capitalization grows, its a sign, too.

Are there any proofs?

Visit the exchange where URA tokens are traded and you will get assured.