jm ¤± á<áÞ9Üj)çÙjµÒÎzÜYqÒvê³3LWell, as long as it only goes gives the voter ability to sign a message to prove that a particular ballot has been cast by them it seems okay.
https://whatsonchain.com/tx/01f9997e0694e44e8be8dca8bee709e3adcae7f51151444c845c49c97ecc5336