Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE3UmrJMxkNaQI1NyRhsWd+sjOc8yRMdO+m3+cRLLAWKzdVervH6bJ3leP3… (844 chars)"
  }
}