Onfleet Driver signup message in Slack

{
  "id": 14,
  "name": "Onfleet Driver signup message in Slack",
  "nodes": [
    {
      "name": "Onfleet Trigger",
      "type": "n8n-nodes-base.onfleetTrigger",
      "position": [
        460,
        300
      ],
      "webhookId": "a005e163-13a2-4ea2-a127-6e00e30a82f4",
      "parameters": {
        "triggerOn": "workerCreated",
        "additionalFields": {}
      },
      "credentials": {
        "onfleetApi": {
          "id": "2",
          "name": "Onfleet API Key"
        }
      },
      "typeVersion": 1
    },
    {
      "name": "Slack",
      "type": "n8n-nodes-base.slack",
      "position": [
        680,
        300
      ],
      "parameters": {
        "text": "A new driver has signed up!",
        "channel": "#new-driver-signup",
        "attachments": [],
        "otherOptions": {}
      },
      "credentials": {
        "slackApi": {
          "id": "7",
          "name": "Slack account"
        }
      },
      "typeVersion": 1
    }
  ],
  "active": false,
  "...