{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x043cdd930d96130a7830ee42f5daa0f9e4d677386f2d85091dd81b166d9f73cc",
    "signature": "0xb923ad7509733e96d52f662baf175bc388a37cf8bbaea4d5a6d19d44ccedf78b5aa42e3e5d18dae5301314f40862706033206e4ceb8d023342d376e12948941d1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}