Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBk3e8cq0xHGLxbSkenH6faVNR1y5cVV6g9Wmr5O1dH8yH5j/0kEUE1PgV2… (844 chars)"
  }
}