{
  "change_set_id": "sample-world-cup-content-update",
  "actor": {
    "actor_id": "admin-sample",
    "display_name": "Sample Content Admin",
    "role": "admin",
    "permissions": [
      "content:write",
      "content:delete"
    ]
  },
  "reason": "Add sample opening match content",
  "dry_run": true,
  "changes": [
    {
      "entity_type": "team",
      "operation": "upsert",
      "stable_id": "MEX",
      "payload": {
        "name": "Mexico",
        "fifa_code": "MEX",
        "country_code": "MX"
      }
    },
    {
      "entity_type": "team",
      "operation": "upsert",
      "stable_id": "RSA",
      "payload": {
        "name": "South Africa",
        "fifa_code": "RSA",
        "country_code": "ZA"
      }
    },
    {
      "entity_type": "stadium",
      "operation": "upsert",
      "stable_id": "estadio-azteca",
      "payload": {
        "name": "Estadio Azteca",
        "city": "Mexico City",
        "country": "Mexico"
      }
    },
    {
      "entity_type": "match",
      "operation": "upsert",
      "stable_id": "wc2026-001",
      "payload": {
        "home_team_id": "MEX",
        "away_team_id": "RSA",
        "stadium_id": "estadio-azteca",
        "kickoff_at": "2026-06-11T19:00:00Z",
        "group_name": "Group A",
        "round_name": "Group Stage"
      }
    },
    {
      "entity_type": "quiz_question",
      "operation": "upsert",
      "stable_id": "daily-2026-06-11-001",
      "payload": {
        "prompt": "Which country hosted the opening match in this sample feed?",
        "options": [
          {
            "id": "mexico",
            "label": "Mexico"
          },
          {
            "id": "canada",
            "label": "Canada"
          },
          {
            "id": "usa",
            "label": "United States"
          }
        ],
        "correct_option_id": "mexico"
      }
    }
  ]
}