Where can I find Saved signatures?

I am needing saved signatures because seasonpass keeps prompting me to save signatures but I dont have anything to save.  never see a drop down list. Grated this is my first tie but it should not be this hard

 

I’m not sure what you’re asking but right clicking on Create IPSW will give you a drop down list. 

I know and I clicked 5.3 but it keeps saying seasonpass unable to save signatures for this Apple TV

To save signatures just use the latest version of iFaith which will save them to your harddrive