StartVerificationPayload

{
    "resource": "d008879e-b5d9-47da-af4e-3c8f40b7c9ee",
    "verifiers": [
        {
            "type": "firebase",
            "identifier": "string",
            "secret": "string",
            "label": "string"
        }
    ],
    "grant": "role",
    "context": {
        "client_id": "string",
        "activity_id": "98dae057-958f-4b2f-9ed4-41f109afdc3f",
        "trace_id": "string",
        "env": "PROD"
    }
}