{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "800871513",
    "entityType": "User",
    "nonce": "0x7b4d4d71f666087ca85ec3779544d037d4edd374629553650f54eca1606dedff",
    "signature": "0x36ad93bfd46d9ee7cdc8a7932b791b87e97e1b9d4f486c6def516fec20c48b9c54c389ede731da7d6e8e73d3bd6ebff4dffd984d671083cda48d48d9393f215f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}