Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAsvTbB5c+94t9l+V9xZNE/1dDJiWPkbf3quEbQQ3hoKnAdQm5B+Q8Xl2fH… (844 chars)"
  }
}