Update a specific array entry when index is unknown

On page load I receive an array of objects from the server, which are displayed using a v-for loop.

The application is real time, so when another user updates an object in the array, I receive a pusher event which contains the updated object (this is a Laravel 5.4 broadcast event containing the updated model).

How do I then locate that object within the array to replace it with the updated version?

Example component JS

export default{
    data(){
        return {
            items: []
        }
    },

    mounted(){
       ...some code to get the array from the server

       this.items = server.response;
    },

    created() {
         Echo.private('channel-name)
           .listen('event', (event) => {

               **What do I do here with the received model to update the items array?**

            });
        });
    }
}

via Joe