{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381991",
    "entityType": "User",
    "nonce": "0x97bc436947d1641509b4866794a92d852250d7a907ddcf51766d9f1fd286ebb5",
    "signature": "0x5b4022a0d0e70b759dc7ac208b3a98c7d53ba81a261736d13f13e5e14fb7cfb77712814bbf734145b6f41c72eb8fbfbdf865300a54625e599688ed5f2195e0461c",
    "signer": "0xDfAC0702040EaBd2d42e773014D4b014C0747D9c",
    "userId": "707937"
  }
}