Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwC8f4mZW4VBmz9GuFoiE/8C2Pcr529GU5MsNHSEHtgwPwHUTUIjfVpMcmM+… (844 chars)"
  }
}