UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '4SDcm5XV7p027xkhqBvbDIQV4lSwI8yeyQiIuXhVIEA=' 
WHERE 
  key_id = '81f7f89075900fa1a83c654d016c7e1fdc0973a166a642cf18e7991e3e7fd80e' 
  AND (
    token = '4SDcm5XV7p027xkhqBvbDIQV4lSwI8yeyQiIuXhVIEA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )