rest – Update an item in the online sharepoint list using FLOW

I would like to update an element of the sharepoint list using ms flow but I need to use the option "Send an HTTP request to sharpoint", the update action of the list will not work due to some complex options in the form.

Does anyone have an example of this procedure? The online search shows the procedures for updating a list name, but I want to update a list item field with a new value.

Example would include

Method (I guess this will be POST)
Uri / _api / lists / getByTitle (& # 39; Test request list) / ID variable