Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCyhTVW12+9WyW/Dc53exKFLIPDJzfVJRfmjz6IXMBBmw5Q2tzVEE3wL3Jm… (1,748 chars)"
  }
}