String readed by bukkit methode

command: /minecraft:summon minecraft:skeleton ~ ~1 ~ {Health:50,Attributes:[{Name:"generic.maxHealth",Base:50},{Name:"generic.knockbackResistance",Base:1f},{Name:"generic.movementSpeed",Base:0.9f}],HandItems:[{id:"minecraft:bow",tag:{display:{Name:'{"text":"Killer3000"}'},Enchantments:[{id:power,lvl:5},{id:punch,lvl:2},{id:flame,lvl:1},{id:infinity,lvl:1},{id:multishot,lvl:1}]},Count:1},{id:"minecraft:diamond_sword",tag:{display:{Name:'{"text":"Cat"}'},Enchantments:[{id:sharpness,lvl:5},{id:smite,lvl:5},{id:bane_of_arthropods,lvl:5},{id:knockback,lvl:2},{id:fire_aspect,lvl:2},{id:looting,lvl:3},{id:sweeping,lvl:3}]},Count:1}],HandDropChances:[2F,2F],ArmorItems:[{tag:{display:{Name:'{"text":"You
  cant kill me!!"}'},Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:feather_falling,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:thorns,lvl:3},{id:depth_strider,lvl:3},{id:frost_walker,lvl:2},{id:unbreaking,lvl:3},{id:mending,lvl:1},{id:soul_speed,lvl:3}]},Count:1,id:"minecraft:diamond_boots"},{tag:{display:{Name:'{"text":"You
  cant kill me!!"}'},Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:thorns,lvl:3},{id:unbreaking,lvl:3},{id:mending,lvl:1}]},Count:1,id:"minecraft:diamond_leggings"},{tag:{display:{Name:'{"text":"You
  cant kill me!!"}'},Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:thorns,lvl:3},{id:unbreaking,lvl:3},{id:mending,lvl:1}]},Count:1,id:"minecraft:diamond_chestplate"},{id:"minecraft:diamond_helmet",Count:1,tag:{display:{Name:'{"text":"You
  cant kill me!!"}'},Enchantments:[{id:protection,lvl:4},{id:fire_protection,lvl:4},{id:blast_protection,lvl:4},{id:projectile_protection,lvl:4},{id:respiration,lvl:3},{id:aqua_affinity,lvl:1},{id:thorns,lvl:3},{id:unbreaking,lvl:3},{id:mending,lvl:1}]}}],ArmorDropChances:[2F,2F,2F,2F],ActiveEffects:[{Id:1,Amplifier:0,Duration:2147483647},{Id:8,Amplifier:0,Duration:2147483647}]}