UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3HQJC3vyuSq0mQ2O/m8vpgffxbIIKkHYuKTpQoI+wIA=' 
WHERE 
  key_id = '8943387e506c4b4f85e6293b049b2ed4d58f37abe3b5eac5a1e8195bc6156d8f' 
  AND (
    token = '3HQJC3vyuSq0mQ2O/m8vpgffxbIIKkHYuKTpQoI+wIA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )