Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDfzOZKXBp6LUy4uHndtFdP2oSFuUGuqjX20nPeRi1u0XoRlA5XInW83rXA… (844 chars)"
  }
}