Here's something we actually could do (not that any of us will do it. Beyond upvoting and a bit of commenting on freedom/politics, no one is going to lift a finger, me included). Find the name of someone who holds power on this decision (we'd need somebody to help us with this). Then Google bomb their name (in English/Arabic/Farsi) to the top of Google with a site about the case and leave an open end for them to decide - did they condemn a man to death, or show clemency and release him?
Or that members of his (no doubt large, and Western educated) family do. Or that the media cover it. But it's academic because I'm not doing it, and nor are you.