using Prove.Proveapi;
using Prove.Proveapi.Models.Components;

var sdk = new ProveAPI(auth: "<YOUR_AUTH_HERE>");

V3EnrollIdentityRequest req = new V3EnrollIdentityRequest() {
    ClientCustomerId = "e0f78bc2-f748-4eda-9d29-d756844507fc",
    ClientRequestId = "71010d88-d0e7-4a24-9297-d1be6fefde81",
    DeviceId = "bf9ea15d-7dfa-4bb4-a64c-6c26b53472fc",
    PhoneNumber = "2001001695",
};

var res = await sdk.Identity.V3EnrollIdentityAsync(req);

// handle response

{
  "identityId": "863189q5-5555-4c15-89ba-15d08710aecz",
  "success": true
}