UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dk/MH327uiWhaKkLf5uTO7bvUpGLpF/qYBFRt9WBddQ=' 
WHERE 
  key_id = '796f26b699e077811cdb2ef1cc798b693b1421ef9a9240d19913cbfb2f7ce944' 
  AND (
    token = 'dk/MH327uiWhaKkLf5uTO7bvUpGLpF/qYBFRt9WBddQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )