I had the same question. I used Turbotax to file my NY state return. The Turbotax electronic filing instructions (generated upon filing) had the same notation for "What You Need to Sign" (i.e., "Sign and date E-File Signature Authorization within 1 day of acceptance."). One day after filing I received notice from Turbotax that the return was "accepted." It appears there is nothing more to do. This is confusing, as the instructions suggest some further action must be taken.
