curl --request POST \
  --url http://134.209.118.139:3002/finance/customers/update \
  --header 'Content-Type: application/json' \
  --header 'x-access-token: <api-key>' \
  --data '
{
  "customerid": 123,
  "fullname": "<string>",
  "telephone": "<string>",
  "address": "<string>",
  "nextofkin": "<string>"
}
'

{
  "message": "No token provided."
}