Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwEW2+qf8eK2dI8YrrVjB6wK/Vr8va1/T+o8u3cOidqVWgK9LGA2WSGfo3R9… (844 chars)"
  }
}