curl --location --request POST 'https://kmai-test.xiaoduoai.com/api/v1/kmai_client/track/user_feedback' \
--header 'Token: xjc' \
--header 'Content-Type: application/json' \
--data-raw '{
"content": "content-xxxx",
"contact": "contact-yyyy",
"i18n": "zh",
"extra_data": {"customer_property": "value"}
}'