{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdcdc35c7ee8b833cc9ffa38ce3cda2e78e9af6f66b9189ee0147ab6773ebcc15",
    "signature": "0xf741526b02afa29dad3e785059833d6f17311766fff241df854acdfa2970a0fc35b66ff210f471478cfc00e047745b5221ae04e90a491a61c778e8ac4ed2fd2f1c",
    "signer": "0xa6f7cf3B012B7DD5c8560B1eAEc946e663584a79",
    "userId": "657789914"
  }
}