Error 404 when trying to fetch the Google Buzz @consumption feed

Question

I'm writing an Qt application and I go through authorization process and everything. I'm even able to fetch the @self feed, but for some reason I get error 404 when trying to do the same thing with @consumption:

"Download of https://www.googleapis.com/buzz/v1/activities/v.kiril/@consumption failed:
Error downloading https://www.googleapis.com/buzz/v1/activities/v.kiril/@consumption - server replied: 
Not Found"

I've got this url from the Google Buzz API. And I've tried to use my personal google profile ID and this @me namespace. Without success