UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QEXrJ2//PCxd6dSkFm0ItIvbnnTDAWipvtVdecz9bOU=' 
WHERE 
  key_id = '3836081e2fab9f717fcbe2e9ffc1ed677848b92aec5b3cd316909ca6c5522c81' 
  AND (
    token = 'QEXrJ2//PCxd6dSkFm0ItIvbnnTDAWipvtVdecz9bOU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )