Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHaAA/5nJW17Aqu3P/BMyR7Ebsf8F7Sm4/No+opXUJO7U/fXf5/ZKJd92A4… (844 chars)"
  }
}