Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGQKb9cti7RtZMVQfYXwMt+1eMFtuqzjsKBTX3NrjMRtCo/cEu5PVt8Bihx… (844 chars)"
  }
}