UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6KPZrWPvEs9tdRPH89hIZpNDwqcu+tdWKtU7nepwjwY=' 
WHERE 
  key_id = '902c4c80e179a881a3552ef44dd359aad881cc58443ca857a0ba48efd5636328' 
  AND (
    token = '6KPZrWPvEs9tdRPH89hIZpNDwqcu+tdWKtU7nepwjwY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )