Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwA+8+klHiboWFBE3XiNzGWTp1bqf01W+hjpOLT5g8VIp1ZZTXSW+Nf6gZVQ… (844 chars)"
  }
}