{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "992893898",
    "entityType": "User",
    "nonce": "0x2840aae6c6266496b4127e2a0a511b515a141175c32adb2645b238b5ce8a8418",
    "signature": "0xb426b036e4ff41b368f68f491484d37dbee33ff0e4f79b8103b32269ef6e3c6d3af177b8dc826794597743ffbbe589858e4b67c0a4bca1db9e9675472df154821c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}