{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "622182",
    "entityType": "User",
    "nonce": "0x9db6efda2806b13373635cb783cab4d455678299b760d8fdf7b1bd71a59e59a9",
    "signature": "0xd2bbb343b635b77d2a688ad2834a1e13eb61391561079c5f5b5dd766a40ef0141e33d4f917b9953a58e3577913d3b00fed466e470cbb547bb2c9cb9ca931f1a21c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}