{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20835",
    "entityType": "User",
    "nonce": "0x6be1c38a3768fb720e2949ed9580af896f54c9642737556ccb74c7f4ec95102c",
    "signature": "0x75fbc79de4b395f8ba630387b3f399247cf306eddbe824938dea5bd0411c7c6541b6e1da1baa6cbc605d3d16a2ac9c9c18a14fb0aa4565c5632ac2093ef119ff1c",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}