Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFoqJfyVatDdVDfz7G/4NZ2QuJL/nRqx23Smi7Rb6xjExvXCMa4w7jLVjPs… (844 chars)"
  }
}