Change iTerm2 Default profile preset with "defaults write..."

I want to do this in my dotfiles script.

I managed to download the preset I want using curl and open it, but I don't know how to set it in the default profile.

I tried AppleScript, but I never used it, and it seemed to be too much work for little... I believe it could be a simpler way, using defaults write, for example.

Any ideas?