UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DxkRcQGZ0c96ejvzmpcfuGJpKvSpCYWVOhIN9E6iPpA=' 
WHERE 
  key_id = '820658905d895749935aee2895a8edfd87840a909f7910c60023f76e3b2a69fb' 
  AND (
    token = 'DxkRcQGZ0c96ejvzmpcfuGJpKvSpCYWVOhIN9E6iPpA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )