Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDVjPo9hYA+w+HaP0UpfV6M8nsREA8I2fY/sDxbgbjh8E6HbJvcgNNQvCJd… (844 chars)"
  }
}