UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '5sPKmnC6HrpK2C2qu4YiJ2WkGTr2GE7J27UqlX7KEvQ=' 
WHERE 
  key_id = '4a981d820e66a63777a7bcd4cc0405b73e248edf194ed1de914ba84390b37249' 
  AND (
    token = '5sPKmnC6HrpK2C2qu4YiJ2WkGTr2GE7J27UqlX7KEvQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )