SpringBoot + Thymeleaf dinamic table with checkbox in row communicate with Controller

Maybe the title is more confusing than the problem it self. Here's my situation, with Thymeleaf I show a table with a list of clients. It shows Name, LastName, a button to delete it and a checkbox to display it's state (if the user is active or inactive)

<table class="table">
<thead>
<tr>
    <th>Name</th>
    <th>Last Name</th>
</tr>
</thead>
<tbody>
<tr th:each="client : ${clientList}">
    <td th:text="${client.name}"></td>
    <td th:text="${client.lastName}"></td>
    <td>
        <a th:href="@{/delete_client/} + ${client.id}" class="btn btn-danger">Delete</a>
    </td>
    <td>
        <input type="checkbox" name="my-checkbox" th:checked="${client.state} ? 'checked'">
    </td>

</tr>
</tbody>

So far, no problem. But what I don't know how to do is communcate the controller when the user click the checkboxes, in order to disable or enable that particular client.

Something like what the button does to delete the client, but to change it's state.

I was told to use AJAX, but don't know how.

Thank you!