UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'qpcexnhQPJSD6qDBVdmLcTZIuP3uNLS3HTwsbK8wbxc=' 
WHERE 
  key_id = '6b51a3bec55ff98bb4e201905dce89032a3c40189936730023f9f52208509685' 
  AND (
    token = 'qpcexnhQPJSD6qDBVdmLcTZIuP3uNLS3HTwsbK8wbxc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )