Trigger chat command with admin perms from console
I'm using BP Manager to set up a store where players can buy blueprints. BP Manager allows me to have the command "/blueprint unlock <name/id> <item>" but since it's an automated store powered by Tebex, I need to send this command through the console. I've tried using the AliasSystem but when I use it in the rcon console, it does not work: it unlocks all the blueprint for some reason (when I use the in-game console, it works). 
Does anyone know a way to do that?
Most Rust chat commands require a player, which the console does not have.