How this command works correctly

/summon wandering_trader ~ ~ ~ {Offers:{Recipes:[{buy:{id:"minecraft:emerald",Count:10},sell:{id:"minecraft:diamond_boots",Count:1b,tag:{display:{Name:"{"text":"flipflops"}",Lore:["{"text":"A Powerful Mystical Trader","italic":false}"]},Enchantments:[{id:"minecraft:feather_falling",lvl:5},{id:"minecraft:protection",lvl:5},{id:"minecraft:soul_speed",lvl:3},{id:"minecraft:mending",lvl:1},{id:"minecraft:unbreaking",lvl:3}],Unbreakable:1b,CustomModelData:1}}}]},CustomName:"{"text":"Shop","italic":false,"color":"dark_red","bold":true}"}