UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dhbkZNr4Es/C8ahJB2E5uRsxmn/Y6fYS9k9bcEGGFII=' 
WHERE 
  key_id = 'ad536c53200b655eb83a92e06b766fe8718e9c354c0a454635314f7771be64f2' 
  AND (
    token = 'dhbkZNr4Es/C8ahJB2E5uRsxmn/Y6fYS9k9bcEGGFII=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )