creating a predicate in new snapshot

i have no clue why its not working anyone now some more about this?? { "condition": "minecraft:entity_properties", "entity": "this", "predicate": { "equipment": { "head": { "components": { "minecraft:custom_data": {"hero":1} } }, "chest": { "components": { "minecraft:custom_data": {"hero":1} } }, "legs": { "components": { "minecraft:custom_data": {"hero":1} } }, "feet": { "components": { "minecraft:custom_data": {"hero":1} } } } } }