CURL command for disable a nat rule

I need a dry CURL command for enable (and later for disable) on the fly a nat rule preconfigured.
Its need for open port 80 just for the necessary time for finalize a letsencrypt renew challenge and disable just after.
Can someone help me? Thanks in advance for your kind support.

You can create a Jump rule into a specific set of dst-nat rules from the dstname ruleset.
You will need to find it first so a commend might be a good way to find the jump rule.

The issue is from curl, it needs to find the item. That requires using .query syntax in the REST API, see here for some examples: http://forum.mikrotik.com/t/how-using-query-stack-in-rest-api/173298/1