Workflow: Twilio Cron Send

{
    "id": "34",
    "name": "Monitoring and alerting",
    "nodes": [
        {
            "name": "Cron",
            "type": "n8n-nodes-base.cron",
            "position": [
                250,
                200
            ],
            "parameters": [],
            "typeVersion": 1
        },
        {
            "name": "Postgres",
            "type": "n8n-nodes-base.postgres",
            "position": [
                450,
                200
            ],
            "parameters": {
                "query": "SELECT * FROM n8n WHERE value > 70 AND notification = false;",
                "operation": "executeQuery"
            },
            "credentials": {
                "postgres": "Postgres"
            },
            "typeVersion": 1
        },
        {
            "name": "Twilio",
            "type": "n8n-nodes-base.twilio",
            "position": [
                650,
                200
            ],
            "parameters": {
                "to": "",
                "from": "",
                "message": "=\ud83d\udea8 The Sensor ({{$node[\"Postgres\"].json[\"sensor_id\"]}}) showed a reading of {{$node[\"Postgres\"].json[\"value\"]}}."
            },
            "credentials": {
                "twilioApi": "Twilio"
            },
            "typeVersion": 1
        },
        {
            "name": "Set",
            "type": "n8n-nodes-base.set",
            "position": [
                850,
                200
            ],
            "parameters": {
                "values": {
                    "number": [
                        {
                            "name": "id",
                            "value": "={{$node[\"Postgres\"].json[\"id\"]}}"
                        }
                    ],
                    "boolean": [
                        {
                            "name": "notification",
                            "value": true
                        }
                    ]
                },
                "options": [],
                "keepOnlySet": true
            },
            "typeVersion": 1
        },
        {
            "name": "Postgres1",
            "type": "n8n-nodes-base.postgres",
            "position": [
                1050,
                200
            ],
            "parameters": {
                "table": "n8n",
                "columns": "notification",
                "operation": "update"
            },
            "credentials": {
                "postgres": "Postgres"
            },
            "typeVersion": 1
        }
    ],
    "active": false,
    "settings": [],
    "connections": {
        "Set": {
            "main": [
                [
                    {
                        "node": "Postgres1",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Cron": {
            "main": [
                [
                    {
                        "node": "Postgres",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Twilio": {
            "main": [
                [
                    {
                        "node": "Set",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        },
        "Postgres": {
            "main": [
                [
                    {
                        "node": "Twilio",
                        "type": "main",
                        "index": 0
                    }
                ]
            ]
        }
    }
}