{
    "blockType": "when",
    "blockOptions": {
        "method": {
            "name": "isDictionaryChanged",
            "args": {
                "item": "item",
                "key": "key",
                "operation": "operation"
            }
        }
    },
    "fields": [
        {
            "name": "item",
            "type": "item",
            "value": "5e4a5fef7f0000707ff6e9bd"
        },
        {
            "name": "key",
            "type": "token",
            "value": "key_1"
        },
        {
            "name": "operation",
            "type": "token",
            "value": "added"
        }
    ]
}