UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RUU3MyEvu2N9Ll5cGfdkKy53/63gjRC+KK30Wi7e3vc=' 
WHERE 
  key_id = '793ecf871560a6d81362a6472ed36a692a9bebaf17103769240134294f993b49' 
  AND (
    token = 'RUU3MyEvu2N9Ll5cGfdkKy53/63gjRC+KK30Wi7e3vc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )