Custom Data on advancments

{
    "criteria": {
      "requirement": {
        "trigger": "minecraft:tick",
        "conditions": {
          "player": [
            {
              "condition": "minecraft:all_of",
              "terms": [
                {
                  "condition": "minecraft:entity_properties",
                  "entity": "this",
                  "predicate": {
                    "equipment": {
                      "feet": {
                        "items": "minecraft:iron_boots",
                        "components": {
                          "minecraft:custom_data": {
                            "value": "slime_boot:1b"
                          }
                        }
                      }
                    }
                  }
                }
              ]
            }
          ]
        }
      }
    },
    "rewards": {
      "function": "test:test"
    }
  }