UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'X5DnC3MPUuD5BUgn3iCgfEfFQtLiYlIczeLETyRt/Bs=' 
WHERE 
  key_id = '268003433842ce4dfa1f19105985977bc432194d1e365c7497c90f54a7875314' 
  AND (
    token = 'X5DnC3MPUuD5BUgn3iCgfEfFQtLiYlIczeLETyRt/Bs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )