JSFiddle - React, Tailwind, and code Playground

JavaScript

function limpar(s) {
    var conteudo = s.match(/{"text": "(.*)"}/)[1];
    var conteudoLimpo = conteudo.replace(/"/g, '\'');
    s = s.replace(conteudo, conteudoLimpo);
    return JSON.parse(s);
};

var string = '{"text": "Olha "eu" aqui"}';
var objeto = limpar(string);