JSFiddle - React, Tailwind, and code Playground

JavaScript

var arr = [
    {entityId: 1, name: 'Total sales'},
    {entityId: 2, name: 'Total customers'},
    {entityId: 3, name: 'Reach'}
];

var indArr = [3, 1, 2];

arr.sort(function(a, b) {
    return indArr.indexOf(a.entityId) - indArr.indexOf(b.entityId);
});

console.log(arr);