curl --location --request GET '/v1.3/weixin_official_accounts_upgrade_status/get' \
--header 'access_token;' \
--header 'timestamp;' \
--header 'nonce;' \
--header 'fields;' \
--data-urlencode 'account_id=<ACCOUNT_ID>'
{
"code": 0,
"message": "",
"message_cn": "",
"data": {
"status": "UPGRADED"
}
}