UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KWO7PoHe12iduwQC3F8/NTi0vEG7CwRvvZU5u93Kbwc=' 
WHERE 
  key_id = '50c891aab769213f5b61d05e8ad8ea9b58c2860cdf5b2ceb615505001b102938' 
  AND (
    token = 'KWO7PoHe12iduwQC3F8/NTi0vEG7CwRvvZU5u93Kbwc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )