{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "17145",
    "entityType": "User",
    "nonce": "0xc67b866cc5046312ebe9831691f9e6301a906941fdca38c74b54f17efa022c8d",
    "signature": "0xcf0a78f041effb862a31c0ff2cee22d482a7e9fd29647806a9ff7de9f09b41311be89815e9fbc587ecd29aa251cace168d28b800b72b4d3b7f9543865d2bba191b",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}