Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwF2L+iBCmvUNHIwRVJ0tG/NSpd3u1QOUGajLpGmFXU+0l6e5laxdU3jIfBE… (844 chars)"
  }
}