Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwD9SWLSGaJXJxQK/r231q0cWNAH5CUo9pXFfaUPArzkRSgMrzwPn0bDuYPc… (844 chars)"
  }
}