{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73354",
    "entityType": "User",
    "nonce": "0x002d937a6e41ce4cb5ef1b21aac4261187cbb2f5877944138576268ee88872a9",
    "signature": "0x6c50950bc5230b524b40b3c439ebe4131f662dc5a6b83cb64a4f515098b303697b924719d6472e94fc35c1628cbd5311b714a27b327185751001ea578ee1933d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}