Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE3O+EJX3l7mQw/YaP/3SGnAgPizCM6Zp2EXzXY39fl0S8Pn0NOhBZ1Z6qc… (844 chars)"
  }
}