Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFPokLG7Iv7uwcReZaQteC+tLKXKvno4fWCdtTHR+tFOwGnJi+8Ei4Nw5rJ… (844 chars)"
  }
}