Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwB2+SWC2Zf5ZbuhsE/nTME0+2S1yJ8yPtcyxTnWWUdzoyGnp8tKVBwl4xzQ… (844 chars)"
  }
}