JSFiddle - React, Tailwind, and code Playground

HTML

<div class="div1">
<input type="submit" value="Подписать" class="class">
</div>
<br>
<div class="div2">
<input type="submit" value="Подписать" class="class">
</div>

JavaScript

$('.class').on('click', function(e){
      var $this = $(this);
      if ($this.prop('disabled')) {return false;};
      $this.prop('disabled', true);
      $this.val('Вы подписаны');
   });