Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwL97GHB+kp6DmtDB6eoOVePy2JLfYUaEYEVLRGJZKk/g1jBlt1jZZHu1w87… (844 chars)"
  }
}