Yes, you would create a hyperlink with your text and point the link to this:
%mkt_opt_out_prefix%UnsubscribePage.html?mkt_unsubscribe=1&mkt_tok=##MKT_TOK##.
You can find this token for the unsubscribe link in the Admin section > Email > Unsubscribe Text.
Note that you wlil want to update the %mkt_opt_out_prefix% part with your domain.
For example, if you were to create an HTML text link, it would look something like this:
<a href="http://www.YOURDOMAIN.com/UnsubscribePage.html?mkt_unsubscribe=1&mkt_tok=##MKT_TOK##">Unsubscribe</a>