[Evolution] Importing email signatures from one computer to another

["Paulo Cesar G. Costa" <paulo costafamily org>]

Greetings!

I have:
- evolution 3.34.1-2 installed in my desktop and in my notebook, both running
Pop_OS! 19.10
I want:
- Import the email signatures that I create in one computer to the other
computer.

Copying the signatures from ~/.config/evolution/signatures between computers
wouldn't do it, as the evolution in the receiving computer will not recognize
these signatures and not make them available.
My guess is that there has to be an index or something similar that links the
signatures in this folder to the ones you see in evolution's Signature tabs
under Composer Preferences (edit>Preferences), but I was not able to find where
such index would be located.
In the evolution list, a search on the topic only retrieved a number of messages
related to gpg signatures and just one 2005 thread on the subject: 
https://mail.gnome.org/archives/evolution-list/2005-August/msg00189.html
However, it refers to a gconf key that I was not able to find in dconf editor.

Any hints on this? Alternatively, is there another way of importing signatures?

Thanks,
Paulo