UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'stmxz16VXsftTCC+ARXyLG50FTisW81plUoHt/+HIbU=' 
WHERE 
  key_id = 'a4ce08a53c09d0617820a246518682687d48ba868e239c7133e6a0944df8787f' 
  AND (
    token = 'stmxz16VXsftTCC+ARXyLG50FTisW81plUoHt/+HIbU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )