Whats the shortcut for move on my time on photoshop in video layers?

Yes, as Michael mentioned you can turn on the shortcut keys, then the frame by frame is the left and right arrow keys.

Click on the menu in the upper right corner of the Timeline panel and choose Enable Timeline Shortcut Keys.

Julieanne Kost has a great summary of the shortcut keys on the following page...

Working with Video and Animation in the Timeline in Photoshop
https://jkost.com/blog/2015/03/masking-videos-for-special-effects-in-photoshop.html

You can use a Script and assign a shortcut to that. 

Edit: 

var desc = new ActionDescriptor();
desc.putBoolean( stringIDToTypeID( "toNextWholeSecond" ), false );
executeAction( stringIDToTypeID( "nextFrame" ), desc, DialogModes.NO );