If I delegate signing authority to someone else, whose name actually appears on the document?

My boss wants to delegate e-signing authority to me, but would still like to have her name/signature (rather than mine) appear on the completed document.  Without my having to sign in under her account (because I can't anyway, because my company uses multifactor authentication to prohibit this exact situation), is there a way to e-sign as a delegatee but still have the delegator's signature appear on the completed document?