{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0xfca4f356784b8ac31b9d8da562e89ecaf807705b3d4c68d8afac8b1601d12056",
    "signature": "0xdbf8660e48a8c667906ca36ad14a4d95fce16fe476367cac94dc4dd5ccbbf8982d93193342caece3265c25814a88c5e724bce7e1318b0cbdeb5b01f2ed63e1cb1b",
    "signer": "0x6068Da6B0a791A756931bE32de98D46eBb95890c",
    "userId": "475275462"
  }
}