Workflow: Manual Activecampaign Automation

{
    "name": "",
    "nodes": [
        {
            "name": "On clicking 'execute'",
            "type": "n8n-nodes-base.manualTrigger",
            "position": [
                600,
                250
            ],
            "parameters": [],
            "typeVersion": 1
        },
        {
            "name": "ActiveCampaign",
            "type": "n8n-nodes-base.activeCampaign",
            "position": [
                800,
                250
            ],
            "parameters": {
                "email": "",
                "updateIfExists": true,
                "additionalFields": {
                    "lastName": "",
                    "firstName": ""
                }
            },
            "credentials": {
                "activeCampaignApi": "ActiveCampaign"
            },
            "typeVersion": 1
        }
    ],
    "active": false,
    "settings": [],
    "connections": {
        "On clicking 'execute'": {
            "main": [
                [
                    {
                        "node": "ActiveCampaign",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}