Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDJOcqo/8d/I+rebc/1dSHrDd5Fp7HnZySFNh0EJhWpOiX2MfHt+IxtQBA+… (1,748 chars)"
  }
}