For the particular lead, I am able to get the lead UDF, but not able to get Lead deatils for example Owner. How can i get the Owner through Lead API

API: https://api.maximizer.com/octopus/Read
body:
{
"Configuration": {
"Drivers": {
"ILeadSearcher": "Maximizer.Model.Access.Sql.LeadSearcher"
}
},
"Lead": {
"criteria": {
"searchQuery": {
}
},
"Scope": {
"Fields": {
"Key": 1,
"CompanyName": 1,
"MrMs": 1,
"FirstName": 1,
"MiddleName": 1,
"LastName": 1,
"Salutation": 1,
"Position": 1,
"Email": 1,
"WebSite": 1,
"Status": 1,
"AssignedTo": 1,
"Address": 1,
"Phone1": 1,
"Phone2": 1,
"Creator": {
"DisplayValue":1
},
"CreationDate": 1,
"ModifiedBy": 1,
"LastModifyDate": 1,
"FullName": 1,
"SecStatus": 1,
"AbEntryKey": 1,
"OpportunityKey": 1,
"Source": {
"DisplayValue" : 1
},
"NoEmployees": 1,
"Industry": 1,
"SourceUrl": 1,
"ArchivedDate": 1,
"DisplayValue": 1,
"Udf/$NAME(Customer Type)" : {
"DisplayValue" :1
},
"Udf/$NAME(Primary Product)" : {
"DisplayValue" :1
}

}

Sending above body data for the API