curl --request PUT \
  --url https://api.example.com/v1/crm/requests/referrals/{id}/ \
  --header 'Content-Type: application/json' \
  --data '
{
  "agent": 123,
  "amount": "<string>"
}
'

{
  "id": 123,
  "created_at": "2023-11-07T05:31:56Z",
  "request": 123,
  "status": 0,
  "status_changed_at": "2023-11-07T05:31:56Z",
  "request_status": 123,
  "agent": 123,
  "amount": "<string>"
}