To sign in to another account, if your logged in on the home screen, go to your profile and then go to switch users. Then scroll left and add users. Then you can sign in with an existing playstation network account! Otherwise you can create a new user and verify your email address.

...

Twitter: https://twitter.com/YourSixStudios?la...
Twitch:   / yoursixstudios  
Discord:   / discord  
Instagram:   / yoursixstudios  

((( Subscribe to my LIVE STREAMING )))
((( Gaming Channel "YourSixGaming" )))
   / @yoursixgaming   ...

((( Subscribe to my ADVENTURE CHANNEL )))
((( Travel, Cameras & More "YourSixAdventures)))
   / @yoursixadventures