Insert the following code where you want to place the iFrame:

<div id="sentiyen-iframe-wrapper" data-id="CHANNEL_ID"></div>
<Script src={'<https://www.sentiyen.com/embed/embed.js>'} strategy="afterInteractive"/>

Here’s a demo.

To change the initial iFrame height, you can use the style param:

<div id="sentiyen-iframe-wrapper" data-id="CHANNEL_ID" style={{ height: '700px;' }}></div>