How to represent multiple Google Drive or Dropbox accounts in a single screen?

I have created a console where I am little bit confused about how to represent multiple google drive and dropbox account in a single screen.

Suppose I have 2-3 dropbox account which is linked in one platform. The platform shows all together file at single place. In this case some duplicate files also there, so it merge into one list view.

The problem is How I represent the particular dropbox account is associated with particular mail id in list view.