Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGI9beBOH3UZJjnhUanzHXvHEu3vdx9BIv8F+2fTy1j+Xlh1S7IJNgQUGu/… (844 chars)"
  }
}