UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'k4gHvjVbEdZoRAg1AVWeG6xnABWttfWkgP+8FkN0zrk=' 
WHERE 
  key_id = '64ee383d6d0556984490df1487e530cc27d289d72195625cbfd9d1495d7317c2' 
  AND (
    token = 'k4gHvjVbEdZoRAg1AVWeG6xnABWttfWkgP+8FkN0zrk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )