UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zhmafeX4lLEtZuw7iRqHRY4fwytjCsOuC4l/icIA89w=' 
WHERE 
  key_id = '4820873265650e2d30b6e47a1276558e9629858d7536339c4ef64c29a6f1301e' 
  AND (
    token = 'zhmafeX4lLEtZuw7iRqHRY4fwytjCsOuC4l/icIA89w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )