Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAy0FNBO/ZHzAUX6c+Bwp2xDOZPg0KHH/xNrX58gnvFJXCba5txQF6J2Uv6… (844 chars)"
  }
}