Workflow: Manual GoogleSheets Create

{
    "nodes": [
        {
            "name": "On clicking 'execute'",
            "type": "n8n-nodes-base.manualTrigger",
            "position": [
                240,
                300
            ],
            "parameters": [],
            "typeVersion": 1
        },
        {
            "name": "Is new?",
            "type": "n8n-nodes-base.if",
            "position": [
                680,
                300
            ],
            "parameters": {
                "conditions": {
                    "string": [
                        {
                            "value1": "={{$json[\"Processed\"]}}",
                            "operation": "isEmpty"
                        }
                    ]
                }
            },
            "typeVersion": 1
        },
        {
            "name": "Do something here",
            "type": "n8n-nodes-base.noOp",
            "position": [
                900,
                100
            ],
            "parameters": [],
            "typeVersion": 1
        },
        {
            "name": "Mark Row as processed",
            "type": "n8n-nodes-base.googleSheets",
            "position": [
                1120,
                300
            ],
            "parameters": {
                "key": "ID",
                "options": [],
                "sheetId": "1SdnwaIJ6xwaZl006FmK2j4f-b00tq7tT7iQgdfe7Qh4",
                "operation": "update",
                "authentication": "oAuth2"
            },
            "credentials": {
                "googleSheetsOAuth2Api": {
                    "id": "228",
                    "name": "Google Sheets account"
                }
            },
            "typeVersion": 1
        },
        {
            "name": "Read sheet",
            "type": "n8n-nodes-base.googleSheets",
            "position": [
                460,
                300
            ],
            "parameters": {
                "options": [],
                "sheetId": "1SdnwaIJ6xwaZl006FmK2j4f-b00tq7tT7iQgdfe7Qh4",
                "authentication": "oAuth2"
            },
            "credentials": {
                "googleSheetsOAuth2Api": {
                    "id": "228",
                    "name": "Google Sheets account"
                }
            },
            "typeVersion": 1
        },
        {
            "name": "Set processed value",
            "type": "n8n-nodes-base.set",
            "position": [
                900,
                300
            ],
            "parameters": {
                "values": {
                    "string": [
                        {
                            "name": "Processed",
                            "value": "={{ $now.toISO() }}"
                        }
                    ]
                },
                "options": []
            },
            "typeVersion": 1
        },
        {
            "name": "Run every 5 minutes",
            "type": "n8n-nodes-base.interval",
            "position": [
                240,
                100
            ],
            "parameters": {
                "unit": "minutes",
                "interval": 5
            },
            "typeVersion": 1
        }
    ],
    "connections": {
        "Is new?": {
            "main": [
                [
                    {
                        "node": "Do something here",
                        "type": "main",
                        "index": 0
                    },
                    {
                        "node": "Set processed value",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Read sheet": {
            "main": [
                [
                    {
                        "node": "Is new?",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Run every 5 minutes": {
            "main": [
                [
                    {
                        "node": "Read sheet",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Set processed value": {
            "main": [
                [
                    {
                        "node": "Mark Row as processed",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "On clicking 'execute'": {
            "main": [
                [
                    {
                        "node": "Read sheet",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}