vertical-cooperative/easy_my_coop_es/views/subscription_request_view.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <record model="ir.ui.view" id="hola">
        <field name="name">subscription.request.form</field>
        <field name="model">subscription.request</field>
        <field name="inherit_id" ref="easy_my_coop.subscription_request_form"/>
        <field name="arch" type="xml">
            <field name="lastname" position="after">
                <field name="vat"/>
            </field>
            <field name="subscription_amount" position="after">
                <field name="voluntary_contribution"/>
            </field>
        </field>
    </record>
</odoo>