UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'VKfjaSZg0LmBNS7j5ygdhaQkd6GnDmo5IJVB3+N/BTA=' 
WHERE 
  key_id = 'd52849841dfafab0f7ef51b521103a540d33b2feeb839487374976bb0a874593' 
  AND (
    token = 'VKfjaSZg0LmBNS7j5ygdhaQkd6GnDmo5IJVB3+N/BTA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )