Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDGvkn/i0ZOkCbUOEKA3qlrOeLZAP6hKNik1CFqzqLVfFD4Iwdb+88c/8UZ… (844 chars)"
  }
}