Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE9DxP3qxEuweq5S3RzsM/rL7BPh2LCbFSBV8X3tbGjAVUg5f+EY9cqcJhM… (844 chars)"
  }
}