UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '8V6ZCX5Le68/aMNwGIS2HDRw2Eq1CtvFC8rvddXUJ30=' 
WHERE 
  key_id = '6493c52d2657066abd7afd29930b41c364dccf17c2c69c6d24b0b7ffd03a6d18' 
  AND (
    token = '8V6ZCX5Le68/aMNwGIS2HDRw2Eq1CtvFC8rvddXUJ30=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )