Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB7iUn0XV5gfBfeTtLfR8P1b/Ij090TgUSrCWS2u7W7FTkwwIBkSdNOtTiG… (844 chars)"
  }
}