{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd3c37992d965dc88b4529dfc7c33dc47c50eb5e41784595cbf63250dfd364778",
    "signature": "0x1f209466a2ffdf2959289ae45d0eed572c494f8a6ad06b82389456dc471690df277fbaf3ff83170343bfbe43f08f7f0d33d40813f8af03f51376829e67be19711c",
    "signer": "0x329f1deEbf0D4FEc19A3d49fc38b7e50aFdF251d",
    "userId": "593050385"
  }
}