{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xac43de2a62764e692f4fd008922f12852c2a74605de55a0b2faa5ae1cbf2dafd",
    "signature": "0xeaa3825db06dc5dd9f70d7093a54ce99dbde00620058c8d6032e538453cbecaa7e111d9d0ed72b4bcf951224b9a999f3331c1d207c5f878dba9809b65d3e21661b",
    "signer": "0xfceB120FA01178F9afaB268933A42ba9318e4311",
    "userId": "936586682"
  }
}