Circle transfer out

const response = await fetch('https://api.bringyour.com/wallet/circle-transfer-out', {
    method: 'POST',
    headers: {
      "Authorization": "Bearer <token>",
      "Content-Type": "application/json"
    },
    body: JSON.stringify({}),
});
const data = await response.json();

{
  "user_token": {
    "user_token": "text",
    "encryption_key": "text"
  },
  "challenge_id": "text",
  "error": {
    "message": "text"
  }
}