Hello,
Yes, you can retrieve or edit the contact information with a query in the following format:
Retrieval:<domain>/rest/om.contact/<contact id>
Update:PUT <domain>/rest/om.contact/<contact id> HTTP/1.1
Authorization: Basic YWRtaW5pc3RyYXRvcjo=
Host: localhost
Content-Type: text\xml
User-Agent: Fiddler
Content-Length: 93
<data>
<OM_Contact>
<ContactFirstName>test 2</ContactFirstName>
</OM_Contact>
</data>
For more information please check this
documentation about retrieving REST data and about
REST data manipulation.
Best regards,
Boris Pocatko