Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBk+NdvDP5Y+sDZGf/8MR5Iwu2NQJZpL5ti0Gg7TWRZ4SAcBqKCFHT1ZDmC… (844 chars)"
  }
}