Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE9NsQfIKEXbmGgKVrMOyZrOUr7XbFcLIhxHSmgieMgTX+4bbZkUf3ZZ7bF… (844 chars)"
  }
}