Place trivet in the bottom of the Instant Pot.
Cut the netting and packaging off of the turkey. Remove the gravy packet (if there is one).
Place the frozen turkey in the Instant Pot.
Rub (or brush) melted butter on all sides of the turkey.
Top the turkey with all the seasonings, trying to cover as much of the surface of the turkey as possible.
Pour chicken broth in the bottom of the Instant Pot, being careful to not pour it directly on the turkey and wash all the seasonings off (you could also pour the chicken broth in before you place the turkey inside the Instant Pot).
Place the lid on the Instant Pot, push the MANUAL button, and set the timer for 1 hour and 25 minutes (more or less depending on how big your turkey is - see notes for details).
When cooking is finished, allow for a natural release for 20 minutes. Move valve to VENTING and release any remaining pressure.
Remove turkey and let rest for about 10 minutes, then slice and serve.
If desired, use drippings to make a gravy (see notes below).
If you want a crispier skin, place the turkey in an oven-safe pan and broil in the oven for 1-3 minutes until it reaches the crisp you desire.