[{
  "customer_id": "123",
  "invoice_due_date": "2017-07-17T12:12:00.511Z",
  "reminder_start": "10",
  "reminder_every": "5",
  "invoice_amount": "1000"
},{
  "customer_id": "124",
  "invoice_due_date": "2017-07-17T12:21:00.511Z",
  "reminder_start": "10",
  "reminder_every": "5",
  "invoice_amount": "1000"
},{
  "customer_id": "125",
  "invoice_due_date": "2017-07-17T12:22:00.511Z",
  "reminder_start": "60",
  "reminder_every": "20",
  "invoice_amount": "1000"
}]