UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NXt0DVOdqjllkr1v9P1T9OWbecVTObPa3be59sUiCUA=' 
WHERE 
  key_id = '751d6692666f8d1921529b1f10403a8c3db4c54aebcba1550fed4c974625147e' 
  AND (
    token = 'NXt0DVOdqjllkr1v9P1T9OWbecVTObPa3be59sUiCUA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )