my command is broken

i was working on my minecraft map but i summand a villiger and the villiger isent villigering /summon villager ~ ~ ~ {NoGravity:1b,Invulnerable:1b,CustomNameVisible:1b,PersistenceRequired:1b,CustomName:"Bobby",VillagerData:{profession:"minecraft:librarian"},Offers:{Recipes:[{buy:{id:"minecraft:tnt",count:5},sell:{id:"minecraft:diamond",count:10}}]}} its not a librien it has no trades but it is named Bobby and it doesent have any gravity