UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KUv74sL+KOtJziRT3nqT8xMJtedCTZQ1oTkekTuPiUY=' 
WHERE 
  key_id = 'a8e0254367d8a0de894ead8587e367690636ba37fb14e9892dd4a04bcdbc5773' 
  AND (
    token = 'KUv74sL+KOtJziRT3nqT8xMJtedCTZQ1oTkekTuPiUY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )