Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDGHDHv1MJyNhYlx3JDPECB1JqLVbwQ/byXD/B6FF8fOQ9rv71N44W9jOB6… (844 chars)"
  }
}