curl --request PUT \
  --url https://flozy-backend-1042419926531.us-central1.run.app/api/v1/external/leads/{leadId}/contacts/{contactId} \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "phone_number": "+1 555 999 8888"
}
'

{
  "http_code": 200,
  "status": "success",
  "message": "Contact updated"
}