UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k7g2WUz0QYaedn2gv8sOqobes//LtkvBbvCF1I9lZP8=' 
WHERE 
  key_id = '9861731ffc52d8fb5f171fd4472c944161a8bbb081ee35a6445c68c65e698657' 
  AND (
    token = 'k7g2WUz0QYaedn2gv8sOqobes//LtkvBbvCF1I9lZP8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )