All non-null parameters in the query string must be serialized as a JSON string with keys sorted in lexicographic order, to be used as the signature input.
3.
The signature content (signContent) must be encrypted using the MD5 algorithm (default: 32-character lowercase alphanumeric string).
{"data":[{"group_id":"34233","group_name":"Group A","description":"Description for Group A","bundles":[{"bundle_id":"1001","bundle_name":"Bundle X"},{"bundle_id":"1002","bundle_name":"Bundle Y"}]},{"group_id":"34234","group_name":"Group B","bundles":[{"bundle_id":"2001","bundle_name":"Bundle Z"}]}],"operateCode":"S","message":"success"}