Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE4QCjxoj+l3Qtn+xSGQPqxJf7oQ7JLs3lJPcOXKXBVpR9TXrUhLx84fvPY… (844 chars)"
  }
}