give @p minecraft:wither_skeleton_spawn_egg[
  minecraft:custom_name={
    text:"King Wither Skeleton Spawn Egg",
    italic:false
  },
  minecraft:entity_data={
    id:"minecraft:wither_skeleton",
    CustomName:{
      text:"",
      italic:false
    },
    CustomNameVisible:false,
    Health:50,
    attributes:[
      {id:"minecraft:attack_damage", base:10},
      {id:"minecraft:max_health", base:50},
      {id:"minecraft:movement_speed", base:0.3},
      {id:"minecraft:movement_efficiency", base:1}
    ],
    equipment:{
      mainhand:{
        id:"minecraft:stone_sword"
      },
      head:{
        id:"minecraft:player_head",
        components:{
          "minecraft:profile":{
            id:[-54951572, 2143702457, -1914418789, 1002619820],
            properties:[
              {
                name:"textures",
                value:"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvYTMxMzkyMGJkYWIwZmFhMTI4OTk5MjE5NWRjNjRhMjE0OTA5OGIxNTNjMzVjNmJhZTc2NWJhM2IwODQyZDFhOSJ9fX0="
              }
            ]
          }
        }
      },
      chest:{
        id:"minecraft:netherite_chestplate",
        components:{
          "minecraft:trim":{
            material:"minecraft:redstone",
            pattern:"minecraft:sentry"
          }
        }
      }
    },
    drop_chances:{
      mainhand:0,
      head:0,
      chest:0
    },
    DeathLootTable:"an:entities/red_fortress/king_wither_skeleton",
    CanPickUpLoot:true,
    PersistenceRequired:true
  }
]