UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'e4AbRNRgcQRwklSQimf99oD2uekWfwgZft96kW96Xfg=' 
WHERE 
  key_id = '31f5cc03925c535a3a6a7285c070837449aba59ceb21a2a6a5d59c42c7aff5d0' 
  AND (
    token = 'e4AbRNRgcQRwklSQimf99oD2uekWfwgZft96kW96Xfg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )