curl --request POST \
  --url https://{api_host}.edisglobal.com/kvm/v2/set/vnc/enable \
  --header 'Content-Type: application/x-www-form-urlencoded' \
  --data signature=session_signature_12345 \
  --data kvm_id=kvm_123456_789012 \
  --data valid_until=1737476000 \
  --data vnc_pw=securepassword123

{
  "status": "success",
  "vnc_status": "enabled",
  "novnc_port": 6080,
  "vnc_port": 5901,
  "vnc_host": "example.edis.at"
}