{
  "Header": [
    {
      "status": "Success",
      "request_time": "2026-04-15T01:16:36-04:00",
      "url": "https://aqs.epa.gov/data/api/signup?email=myemail%40example.com"
    }
  ],
  "Data": [
    "You should receive an email containing your new key shortly."
  ]
}