UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'GxBVkh4LjHzYm6QATtiZw7GnkmOG+4LNwTmab0CAHj8=' 
WHERE 
  key_id = '263aa7d576710a9687f10342521f5be54202b3fd58d1a17de3e0caf3cc46241c' 
  AND (
    token = 'GxBVkh4LjHzYm6QATtiZw7GnkmOG+4LNwTmab0CAHj8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )