mutation ExportUnderwritingData {
  exportUnderwritingData {
    downloadUrl
    errors {
      message
    }
  }
}

curl --request POST \
  --url https://api.sandbox.com/graphql \
  --header 'Content-Type: application/json' \
  --header 'Authorization: Bearer <YOUR_ACCESS_TOKEN>' \
  --data '{
  "query": "mutation ExportUnderwritingData {\n  exportUnderwritingData {\n    downloadUrl\n    errors {\n      message\n    }\n  }\n}"
}'

{
  "data": {
    "exportUnderwritingData": {
      "downloadUrl": "example",
      "errors": [
        {
          "message": "example"
        }
      ]
    }
  }
}