So, to answer your question, I've attached a sample SOAP envelope for subscribers, clicks, and opens.
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header>
<fueloauth xmlns="http://exacttarget.com">hxvn5eq6wgetnffjmn9g4upg</fueloauth>
</soapenv:Header>
<soapenv:Body>
<RetrieveRequestMsg xmlns="http://exacttarget.com/wsdl/partnerAPI">
<RetrieveRequest>
<!-- Retrieving Subscribers after Create Date -->
<ObjectType>Subscriber</ObjectType>
<Properties>ID</Properties>
<Properties>CreatedDate</Properties>
<Properties>Client.ID</Properties>
<Properties>EmailAddress</Properties>
<Properties>SubscriberKey</Properties>
<Properties>Status</Properties>
<Properties>UnsubscribedDate</Properties>
<Properties>EmailTypePreference</Properties>
<Properties>SubscriberKey</Properties>
</RetrieveRequest>
</RetrieveRequestMsg>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header>
<fueloauth xmlns="http://exacttarget.com">hs828jcnjkwq2bhkve3j4va3</fueloauth>
</soapenv:Header>
<soapenv:Body>
<RetrieveRequestMsg xmlns="http://exacttarget.com/wsdl/partnerAPI">
<RetrieveRequest>
<Properties>BatchID</Properties>
<Properties>CreatedDate</Properties>
<Properties>EventDate</Properties>
<Properties>EventType</Properties>
<Properties>ID</Properties>
<Properties>ModifiedDate</Properties>
<Properties>SendID</Properties>
<Properties>SubscriberKey</Properties>
<Properties>TriggeredSendDefinitionObjectID</Properties>
<Properties>URL</Properties>
<ObjectType>ClickEvent</ObjectType>
</RetrieveRequest>
</RetrieveRequestMsg>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header>
<fueloauth xmlns="http://exacttarget.com">ktq8ttvmkedw4pvm93s8v3vg</fueloauth>
</soapenv:Header>
<soapenv:Body>
<RetrieveRequestMsg xmlns="http://exacttarget.com/wsdl/partnerAPI">
<RetrieveRequest>
<ObjectType>OpenEvent</ObjectType>
<Properties>BatchID</Properties>
<Properties>CreatedDate</Properties>
<Properties>EventDate</Properties>
<Properties>EventType</Properties>
<Properties>ModifiedDate</Properties>
<Properties>PartnerKey</Properties>
<Properties>SendID</Properties>
<Properties>SubscriberKey</Properties>
<Properties>TriggeredSendDefinitionObjectID</Properties>
</RetrieveRequest>
</RetrieveRequestMsg>