{
  "id": 42,
  "name": "Welcome series (v2)",
  "description": null,
  "status": "active",
  "trigger": {
    "type": "event",
    "event_name": "purchased"
  },
  "nodes": [
    {
      "id": 1,
      "type": "enter"
    },
    {
      "id": 2,
      "type": "email",
      "title": "Welcome email",
      "message": {
        "id": 100,
        "from": "hello@example.com",
        "reply_to": "reply@example.com",
        "contents": [
          {
            "id": 200,
            "locale": null,
            "is_default": true,
            "subject": "Welcome aboard",
            "preheader_text": "Glad you're here"
          }
        ]
      }
    },
    {
      "id": 3,
      "type": "exit"
    }
  ],
  "edges": [
    {
      "from": 1,
      "to": 2
    },
    {
      "from": 2,
      "to": 3
    }
  ],
  "created_at": "2026-03-01T10:00:00Z",
  "updated_at": "2026-03-02T09:30:00Z"
}

{
  "error": "not_found"
}

{
  "errors": [
    {
      "message": "<string>"
    }
  ]
}

{
  "errors": [
    {
      "message": "<string>"
    }
  ]
}