UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mBXMem3q344LQwgvu28y4da+BoeT43O5idllvi4IHHs=' 
WHERE 
  key_id = '8da40761a1c8739b2359dbd61e94ad2b74fb79ab1e5eb079db7b537464c5ebc8' 
  AND (
    token = 'mBXMem3q344LQwgvu28y4da+BoeT43O5idllvi4IHHs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )