Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwIxv/6L/rRmX5t2SiUgkpND/Uqv7F9hv2PBVBcF7spzmF0dQD+X6PPhw1Xd… (844 chars)"
  }
}