curl --request POST \
  --url http://localhost:8000/api/v1/campaigns/prefill \
  --header 'Authorization: Bearer <token>'

{
  "market_analysis_id": 123,
  "market_analysis_title": "<string>",
  "google_ads_customer_id": 123,
  "suggested_campaign_name": "<string>",
  "language_ids": [
    123
  ],
  "location_targets": [
    {
      "geo_target_constant_id": 123,
      "target_type": "INCLUDE"
    }
  ],
  "network_settings": {
    "target_google_search": true,
    "target_search_network": false,
    "target_content_network": false
  },
  "ad_schedule": {
    "schedule_entries": [
      {
        "start_hour": 11,
        "end_hour": 12,
        "start_minute": 0,
        "end_minute": 0
      }
    ]
  },
  "ad_groups": [
    {
      "id": 123,
      "name": "<string>",
      "keywords": [
        {
          "text": "<string>",
          "cpc_bid_micros": 123,
          "final_url": "<string>",
          "market_analysis_keyword_id": 123
        }
      ],
      "cpc_bid_micros": 123
    }
  ],
  "draft_id": 123,
  "website_url": "<string>",
  "bidding_strategy": {
    "target_cpa_micros": 123,
    "target_roas": 1,
    "max_cpc_bid_ceiling_micros": 123
  },
  "conversion_goals": [
    {
      "conversion_action_id": 1
    }
  ],
  "extensions": {
    "sitelinks": [
      {
        "link_text": "<string>",
        "final_url": "<string>",
        "description_1": "<string>",
        "description_2": "<string>",
        "final_mobile_url": "<string>"
      }
    ],
    "callouts": [
      {
        "callout_text": "<string>"
      }
    ],
    "phone": {
      "phone_number": "<string>",
      "country_code": "<string>"
    },
    "structured_snippets": [
      {
        "values": [
          "<string>"
        ]
      }
    ]
  },
  "ad_groups_task_id": "<string>",
  "rsa_task_ids": [
    "<string>"
  ],
  "ad_groups_generation_status": "pending",
  "ad_groups_generation_error": "<string>",
  "rsas_generation_status": "not_started",
  "extensions_generation_status": "not_started",
  "is_published": false,
  "all_rsas_generated": false
}