{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "161447907",
    "entityType": "User",
    "nonce": "0xffd00688317f5df42b03222c3c1987b8d90771c5b5342581afde5b570bf06313",
    "signature": "0xa0d0de43db2f93097a5800665c8ea288436620bfb45256d173d4264fbae22efc7222933d9b60104034f1a6db669fc8fac42e0279a43cdc41285a3ffcbc3112d81b",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}