[
  {
    "FieldName": "website",
    "Key": "[website]",
    "DataType": "Text",
    "FieldOptions": [],
    "VisibleInPreferenceCenter": true
  },
  {
    "FieldName": "age",
    "Key": "[age]",
    "DataType": "Number",
    "FieldOptions": [],
    "VisibleInPreferenceCenter": true
  },
  {
    "FieldName": "subscription date",
    "Key": "[subscriptiondate]",
    "DataType": "Date",
    "FieldOptions": [],
    "VisibleInPreferenceCenter": false
  }
]