Transform an array of objects structure

At the moment I am working with an api that returns an array of objects that looks like

[{match_id: "255232",
country_id: "41",
country_name: "England",
league_id: "152",
league_name: "National League",
match_date: "2020-01-01",
match_status: "",
match_time: "16:00"},
{match_id: "255232",
    country_id: "41",
    country_name: "Italy",
    league_id: "152",
    league_name: "Serie a",
    match_date: "2020-01-01",
    match_status: "",
    match_time: "16:00"},
{match_id: "255232",
        country_id: "41",
        country_name: "Italy",
        league_id: "153",
        league_name: "Serie b",
        match_date: "2020-01-01",
        match_status: "",
        match_time: "16:00"},...
    ...

]

I would like to transform it in a way that ends up looking like:

const transformed = [
{
    country_name: "England",
    entries: [
        {league_name: "National League",
        events: [{},{}]}
    ]

},
{country_name: "Italy",
entries: [
    {
        league_name: "Serie a",
        events: [{},{}]
    },
    {
        league_name: "Serie b",
        events: [{},{}]
    }...
]]

I have tried to use .reduce but did not end up with expected output and I end up with just a reverted structure. Basically what I need is to catalogue by country_name first and league_name second.

Obviously the data is dynamic and the names of countries/leagues change often.