How does the angry_at piglin nbt work?

I am planning to do a manhunt with lots of things as twists (Video title would be:"Minecraft Manhunt but Buttons, Pressure plates, and Trapdoors are OP) so if you hold a blackstone button, it would spawn a piglin that takes extra knockback, targets the other player by using the Brain angry_at nbt tag, and never turns into a zombified piglin.

I have put down another question asking for how to make the piglins take extra knockback no matter what, so now I’m asking what nbt to use if I wanna spawn a piglin that targets a player called LittlePythoner(even if another nearby piglin is angry at me or something like that)?

/execute as @e[type=piglin] run data modify entity @s Brain.memories.minecraft:angry_at.value set from entity LittlePythoner UUID