Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE4vdIFFQovx+NQwOzixwECFJM3Amu2g5xDzAqe7BuP6g4UE7j/zyKJklrw… (844 chars)"
  }
}