Workflow: Manual Facebookgraphapi Automation

{
    "nodes": [
        {
            "name": "On clicking 'execute'",
            "type": "n8n-nodes-base.manualTrigger",
            "position": [
                250,
                300
            ],
            "parameters": [],
            "typeVersion": 1
        },
        {
            "name": "Facebook Graph API",
            "type": "n8n-nodes-base.facebookGraphApi",
            "position": [
                450,
                300
            ],
            "parameters": {
                "node": "me",
                "options": {
                    "fields": {
                        "field": [
                            {
                                "name": "last_name"
                            },
                            {
                                "name": "first_name"
                            }
                        ]
                    }
                }
            },
            "credentials": {
                "facebookGraphApi": "graph_credentials"
            },
            "typeVersion": 1
        }
    ],
    "connections": {
        "On clicking 'execute'": {
            "main": [
                [
                    {
                        "node": "Facebook Graph API",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}