{
  "key": "newUser",
  "label": "A fresh signup",
  "fields": [
    { "key": "firstName", "mode": "dynamic", "generator": "person.firstName" },
    { "key": "email", "mode": "dynamic", "generator": "internet.email" },
    { "key": "plan", "mode": "static", "value": "pro" }
  ]
}