{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xa0fa43e31d1e0205111669499ee26ea5c684a029c9d8cf059f24c019b6355708",
    "signature": "0x8566ddc88ad62db1d34c746f8738e4efc74cfaef55a4f0838c5bebc7c9c4792d7c76f3976c488883b51c4cbee6a2420ebc3ce6e7f1bfd6a0274ffc989fed70f21c",
    "signer": "0xd6Fd4DdAb249Bf27c9022C2Fb88428E1bb91A45b",
    "userId": "613458015"
  }
}