问JAVA SDK添加安全组规则报错：invalid [action] format ？

报错提示：
10002 InvalidParameterValue-invalid data format: invalid [action] format

添加参数如下：Nonce=1639072010&Action=CreateSecurityGroupPolicies&Version=2017-03-12&SecurityGroupId=sg-hvulyjdz&SecretId=xxxx&RequestClient=SDK_JAVA_3.0.24&Region=ap-guangzhou&SecurityGroupPolicySet.Ingress.0.CidrBlock=0.0.0.0%2F0&SecurityGroupPolicySet.Ingress.0.PolicyDescription=ttttttt&SignatureMethod=HmacSHA256&SecurityGroupPolicySet.Ingress.0.Port=ALL&Timestamp=1545287114&Signature=xxxxxx%