curl --request POST \
  --url https://{api_host}.edisglobal.com/kvm/v2/set/poweroff \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data signature=session_signature_12345 \
  --data kvm_id=kvm_xxxxx_yyyyy \
  --data valid_until=1737476000

{
  "status": "success"
}