Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGBE3BEgnmf/8UrlL8IVYYe8FvaSNPSyxljcFeXKQCJHzgvlbZIPtF8Qzl8… (844 chars)"
  }
}