Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGVsLQxlEIs7aS8dNa8r4Zx8GXtSFQ/e/Kw/E1Wf97ulRF9H0p+YN2su8xy… (844 chars)"
  }
}