Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDhtuGrLjUoKiJWG69Jb3pnxMx41xiOGK1Ix6Yfnqrl4ESu7ZCASo9J+j8F… (844 chars)"
  }
}