{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1807003",
    "entityType": "User",
    "nonce": "0xba5a5c3b1c8b068f9176d3ae13bf01f096318acd65d23e5d70080f9b7a6405fb",
    "signature": "0xe89d2b6d7c0203e476fa0ff6ce8b4ba37ec8e75dd002b3b8e1b9138d2929641f7f909d261af2f20af3f5e92f767ea544ce4f607a02716812030eb5d1b4b615921b",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}