$('#idBoton').click( function(){

    fetch('http://181.61.221.52:8119/operative/simplecreateticket/', {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify({"auth_key": "ffa07465e5af0a0f69d776e3a288dea1",
   order_ent: $( "entity_number").val(),
 order_cedula: $("contact_identification").val(),
   order_name: $( "contact_name").val(),
    order_mail: $("contact_email").val(),
    order_phone: $("contact_phone").val(),
    order_fax: $("contact_fax").val(),
    order_dir: $("contact_address").val(),
   order_city: $("city_name").val(),
   order_cargo: $( "contact_position_name").val(),
    order_description: $("description" ).val() })
   })