ResponseBody {
    Layout {
        Directives {
            AddCardDirective {
                Name: "add_card_1"
                CardId: "1"
            }
        }
        Directives {
            AddCardDirective {
                Name: "add_card_2"
                Div2Card {
                    Body {
                        fields {
                            key: "key2"
                            value {
                                string_value: "Not empty!"
                            }
                        }
                    }
                }
            }
        }
    }
}

