UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'FMfsSXGcrUe4xRiOWqAFLlMI9rahf1+1w94i/u3qb/U=' 
WHERE 
  key_id = '343e708156e271be319cf906e111cf971e5c14f557b96f919c00987ce7d2a396' 
  AND (
    token = 'FMfsSXGcrUe4xRiOWqAFLlMI9rahf1+1w94i/u3qb/U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )