Armorstand Hologram

/setblock ~-1 ~ ~ wall_sign 4 replace {Text2:"{\"text\":\"\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/blockdata ~1 ~ ~ {auto:0,Command:\\\"/summon armor_stand ~ ~ ~ {Invisible:1b,Invulnerable:1b,PersistenceRequired:1b,NoBasePlate:1b,NoGravity:1b,ShowArms:1b,Small:1b,CustomName:\\\\\\\"\\u00a73Welcome \\u00a74to \\u00a75the \\u00a73PvP \\u00a72miniGames!\\\\\\\",CustomNameVisible:1b,DisabledSlots:2039583}\\\"}\"}}",Text3:"{\"text\":\"\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/blockdata ~1 ~ ~ {auto:1}\"}}",Text4:"{\"text\":\"\",\"clickEvent\":{\"action\":\"run_command\",\"value\":\"/setblock ~ ~ ~ air\"}}"}