UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'cAa6Ww6POwzQ7aQFaShQWttVaX41LHo6fnKQSx+7qxM=' 
WHERE 
  key_id = '51b2df1235e296de9ddcfdd774a90c44d605d4594a465f8648e54978be1819d3' 
  AND (
    token = 'cAa6Ww6POwzQ7aQFaShQWttVaX41LHo6fnKQSx+7qxM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )