UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'unXSpHiCEC+oa0XIMnT32xfUje5kju8gMr5xLxGn/jU=' 
WHERE 
  key_id = '8e4110a63699bc3a4bc7873b4b655b65522139121c4064d00349fddcd0fcdbc0' 
  AND (
    token = 'unXSpHiCEC+oa0XIMnT32xfUje5kju8gMr5xLxGn/jU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )