If you can’t trust the motives of the agent reviving you, you’re screwed anyway, so I’d focus on things you’d regret not having. For me, I’d try to store any information that might otherwise be lost to entropy (including my forgetful memory): originals or backups of my journals, correspondence, etc. (Keepsakes are probably not worth the space, unless quite unique.)
If you can’t trust the motives of the agent reviving you, you’re screwed anyway, so I’d focus on things you’d regret not having. For me, I’d try to store any information that might otherwise be lost to entropy (including my forgetful memory): originals or backups of my journals, correspondence, etc. (Keepsakes are probably not worth the space, unless quite unique.)