Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGfwd+2Xa4MQ2G9/1rgiCXoiw6jfo7C89b15Pk3Zj1NNFz0w6BcNYvAqK8X… (844 chars)"
  }
}