Thank you Nico de Poel for your post.
I used code sample you provided and it worked like miracle, i was finally able to receive expected data. Connection broke afterwards, but I’ll figure it out,
One more thing, probably not from this topic, but I am wondering if you could help with one more thing, or recomment some other post. I want to create standalone plugin, with tcp listener and i cant figure out, how to use actor classes (put them in actual game and make them work), which I created in plugin folders.