UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MwNnk95RXpLxod6hneC5L5rqlcfZBjdopgv4IoViFbU=' 
WHERE 
  key_id = '52891b7e25c8121517161eaf2509da67d49d7443bc8d0d655c4cf620c4fe97d8' 
  AND (
    token = 'MwNnk95RXpLxod6hneC5L5rqlcfZBjdopgv4IoViFbU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )