What is NSHSS?

I recently got an “invitation” to pay $60 to join NSHSS. I don’t know what it is or what exactly qualified me, all the letter says is that it’s for outstanding academic performance. Is it somehow affiliated with being accepted into NHS? Is it beneficial at all? Thank you!

It is not affiliated with NHS, most ppl say its a scam, but I mean its real, just not beneficial!