{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "363081",
    "entityType": "User",
    "nonce": "0xaabbf8f14a063e9678da675a7517e7fe0e661a1c47300d38307e5fffb05ba403",
    "signature": "0x529bb2763fc8eca3d05cea77020b3771a82e018754cd3ebc1b55c85cc43504505809fac84b5754402de46777a4ff68d4628e85ef8704800d6a95511e7fa2906f1b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}