Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGJ/X1Rl94bQisR62D8YenbvyBG7Bn8Sz+yUBrVdNw30Td2TqHJzMKk0DnZ… (844 chars)"
  }
}