{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105578",
    "entityType": "User",
    "nonce": "0xd48a8805efc7e135b84ee368535d5f94636b2ab619701314a8039fa5594b4a87",
    "signature": "0x7fcc78c69ce769f51209a3a69dca11d3a01f1727b177ed4c7198793b43b6c7892c235b929c37cdf16f23664178107dc9f17693fd424b2b8a175b7829450830a31c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}