UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Au6Yb7jDHwHkxYoJplRWHXrgPsoLjPVU/tk1l+6wl/c=' 
WHERE 
  key_id = 'c047e64f03da9ce39a095479295ca5d723153177b229554c0fa5207755d02c18' 
  AND (
    token = 'Au6Yb7jDHwHkxYoJplRWHXrgPsoLjPVU/tk1l+6wl/c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )