Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwH0Y0XPNmHRyUNedv57LpBFP3iA+RMiGiOp1dM6LLmhfE2rY4U0QqZbPiyZ… (844 chars)"
  }
}