UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pwt+njeIlbHfs8adbkd3dt//PVIb8bWkRdSdZ/ItWec=' 
WHERE 
  key_id = '93678dd3ef77eb85378eb98355f2d96cb12515447fbbfef469326c340eeb7b75' 
  AND (
    token = 'pwt+njeIlbHfs8adbkd3dt//PVIb8bWkRdSdZ/ItWec=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )