UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VV9WA7QHVwl3ebOzKfJ0owbnt2aWjsxr6BoHwuNwvDc=' 
WHERE 
  key_id = '1516612b836ce202492bda0e5c752f2c7d4c0de7e184838cd193706913ff4538' 
  AND (
    token = 'VV9WA7QHVwl3ebOzKfJ0owbnt2aWjsxr6BoHwuNwvDc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )