Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD5TF8aT/99wneXE+yZ9KYasMUlCDDcDMqF6hrPxg5oZwPFT9GHsrGIabZz… (844 chars)"
  }
}