UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MkFE6qIULtqHWpk0W70sIMuuxoSzLVvjCIhPaG5/Mps=' 
WHERE 
  key_id = '6e4a7640fc60f8e7fd7b610485def651ce227e16939bc73fb231dc20ff5ea5d9' 
  AND (
    token = 'MkFE6qIULtqHWpk0W70sIMuuxoSzLVvjCIhPaG5/Mps=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )