curl --request PUT \
  --url https://api.meetcampfire.com/rr/api/v1/customers/{id} \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "customer": 123,
  "name": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "email": "jsmith@example.com",
  "phone_number": "<string>",
  "mobile_number": "<string>",
  "contacts": [
    {
      "name": "<string>",
      "first_name": "<string>",
      "last_name": "<string>",
      "email": "jsmith@example.com",
      "phone_number": "<string>",
      "mobile_number": "<string>"
    }
  ]
}'

{
  "id": 123,
  "customer": 123,
  "name": "<string>",
  "first_name": "<string>",
  "last_name": "<string>",
  "email": "jsmith@example.com",
  "phone_number": "<string>",
  "mobile_number": "<string>",
  "currency": "<string>",
  "total_contracts": 123,
  "active_contracts": 123,
  "completed_contracts": 123,
  "pending_contracts": 123,
  "total_revenue": 0,
  "total_mrr": 0,
  "total_billed": 0,
  "total_unbilled": 0,
  "total_paid": 0,
  "total_outstanding": 0,
  "created_at": "2023-11-07T05:31:56Z",
  "contacts": [
    {
      "id": 123,
      "name": "<string>",
      "first_name": "<string>",
      "last_name": "<string>",
      "email": "jsmith@example.com",
      "phone_number": "<string>",
      "mobile_number": "<string>"
    }
  ],
  "total_deferred_revenue": 0
}