Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC9V+YN/NQAMGXH9sJ35w2diSjMMlYCzFVuH5SBLT7R2FfGwNUigqiB5zrR… (844 chars)"
  }
}