{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "398460",
    "entityType": "User",
    "nonce": "0xb696f1dc356aa70861b6b04c9e58ddfcfba4bd9673a241dbc24cdf579d74e921",
    "signature": "0x809b4b21cf937e62dbf9a5529f43fb6eda9cda0612ba1c9b8e9da4b91dd7c8995b4d5741917cfec0fa61bd8d0dcb843b3633523b3adbba2c3f6a55fe118848681b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}