Turnovers would be the key.
It's true that there will be nights when Golden State would just be careless with the ball, and we are one of the best in the league in forcing Turnovers.
If we can do that, and we capitalize on it, we certainly can beat the Dubs. Also, one key would be to put Draymond Green in foul trouble, early. He does so many things on the court that benefits everyone on that team, we get him to sit early, we strike, and we can be in position to win. Post up Amir, or Sullinger and be aggressive. It's easier said than done of course, but if we can, we could snatch this.