UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6XB7/KbLnq5pxeVcY+br74+UhDD5CFuLc3q8i+VB/Jw=' 
WHERE 
  key_id = '82611c40857327616458ac5f6dbff84a2b6ad24cb30679dfcae4b5fa86abbbd8' 
  AND (
    token = '6XB7/KbLnq5pxeVcY+br74+UhDD5CFuLc3q8i+VB/Jw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )