how to render or display data in react useeffect hook

I am able to get data in react JSON object, now I want to convert the JSON to string data and display into the page, Please find the below screenshot.

export const QvcPollsTab = () => {
    
    const [spData, setSpData] = useState<string>();
   -------------------------------------------------------

return (        
        <Provider theme={theme}>          
                
                <Flex.Item>
                    <div>
                        <div>
                            <Text content={`Hello test ${spData}`} />
    ------------------------------------------------------------

I can see the JSON data as is attached in image, but I am not able to iterate the data and display individual field like fields values. Please help.