Where do Beta 4 client users put their new PS3 activation code?

The announcement dated 2013/08/21, "Announcing the Starting Time of Early Access!" says that the game client from Beta 4 "can also be used as the game client for Early Access. You do not need to uninstall the Beta Test 4 client and install anything else."

So where do I enter my 12-character PS3 Activation code in order to get the client recognized? Any ideas?