{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf611da67329fbb423657596c2244d0fe32928db3062f6cc44020c3cdec2344a3",
    "signature": "0x049deeb9dbc9b80458cf20ad8cb746a72d20cb23e34f016e5f994fe560576ebb588a88658a6b213fca555000738d2f1585b34a4c3b513c052abc0182e9ff12e21c",
    "signer": "0x3C6F0E09eaF5eB463F767c9d5CD0cDA328e1492D",
    "userId": "586117523"
  }
}