Samsung Pay Beta Testers

With today's announcement of Samsung Pay's impending release in the US, I was wondering how one might get involved in the beta testing. According to The Verge, " 'select US users' will be able to take part in a beta test beginning on August 25th." Any way to sign up to be one of those "select users" or will they hand it out semi-randomly?

Sorry. I'm guessing this should be in Galaxy S6 Q&A, Help & Troubleshooting