Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAFZAAJngeZUwlxpNpPVDZ1eQB8sU/hPlmGQkKcAT2k3UF5xMv+J4pIDKs/… (844 chars)"
  }
}