public void setIdentityId(String identityId) {
        this.identityId = identityId;
    }
<p>
Unique ID for this identity.
</p>

@param identityId
       Unique ID for this identity.
aws-java-sdk-cognitosync/src/main/java/com/amazonaws/services/cognitosync/model/UnsubscribeFromDatasetRequest.java