{
"cityCode": "string"
}curl --location --request POST 'http://dev-cn.your-api-server.com/api/data/regions?appId&nonce&sign×tamp' \
--header 'Content-Type: application/json' \
--data-raw '{
"cityCode": "string"
}'[
{
"regionCode": "string",
"regionName": "string"
}
]