UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e4fGjuJv3RI1pR1EPhd2nWWzeOmHXEkhD9kXkseRMCI=' 
WHERE 
  key_id = '939c4fc0ae4feccc38bbd5282725b703c32b3046929a82bffdfde2de453601c7' 
  AND (
    token = 'e4fGjuJv3RI1pR1EPhd2nWWzeOmHXEkhD9kXkseRMCI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )