Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCL+Fmqx993+6+dfdR2gQs5+C4xqWEb81QtSxZjxo/bxVxA6k4Vu/l2v+mC… (844 chars)"
  }
}