{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4a8469c36cfd96b7510b508d210515f05cf0ab3513bab385edc096fb1c87f0b6",
    "signature": "0xe95d8e2d4b5e651c7a6affe3f581c9ea54909e46e9a5fe6547294bed0a4fc1981549e655190aa913ba599eaa21c2795fb5b2f4214bdcb865f79c0e7a7ae6ff0d1c",
    "signer": "0xcC480fFCA528b89b48d4017Bd5CA68D2434F439A",
    "userId": "597310925"
  }
}