Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFvm+h0Iz3dURmxiKK5NnVrh3Gg4T/N3A/6TOAWmnHE5BuCXTzY6LX6p7d0… (844 chars)"
  }
}