UPDATE 
  q_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6ftjZszMRF7WRg0AHdgQxQ+m1DOk0sv1LIXhAdh5h7A=' 
WHERE 
  key_id = '26da455ce1610018618dc33b13995b44e4e5db122bead5b353e6ed20061fb416' 
  AND (
    token = '6ftjZszMRF7WRg0AHdgQxQ+m1DOk0sv1LIXhAdh5h7A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )