UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6UDdMNEQnAMLYIP907M92w4EWDt6BCHyWSjFQlBEutM=' 
WHERE 
  key_id = '50543971b41fb9bcaeae1c17041dc5d3abe21c5dc112b178004a0612a8493403' 
  AND (
    token = '6UDdMNEQnAMLYIP907M92w4EWDt6BCHyWSjFQlBEutM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )