UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Flcu5pWZ05sGEzm1YLHPwqTxrivII3IVtdX2DxD8GlE=' 
WHERE 
  key_id = '6793d8548069e143599b1856d138d1f15e95a24cdf54e64854cce268480c194f' 
  AND (
    token = 'Flcu5pWZ05sGEzm1YLHPwqTxrivII3IVtdX2DxD8GlE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )