UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'uPOrSNpCJTIN2DoXsFRm0DsAEeFeLyf//GetdFHCSew=' 
WHERE 
  key_id = '51b1cdac3b8fc38950f34cd302c895783daaf044658b8668162b40f9d257ea74' 
  AND (
    token = 'uPOrSNpCJTIN2DoXsFRm0DsAEeFeLyf//GetdFHCSew=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )