Проверьте множество ключей в объектах
const neededKeys = ['oldPassword', 'name', 'newPassword'];
const obj = {
"name": "admin@test.org",
"oldPassword": "1234",
"newPassword": "12345"
}
console.log(neededKeys.every(key => Object.keys(obj).includes(key)));
Jolly Jellyfish