LINK :
https://waaw.tv/watch_video.php?v=8HAkD1yCLZbi
Once you go through the freaking popup ads and sh*t like that, you can watch it with no problems (swear it's the real deal)
English subs here: https://subscene.com/subtitles/game-of-thrones-seventh-season/english/1613645
You can add the sub by clicking "CC" and load it from your PC.