{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xccc14fd18c03590f2f04c63abd08e95e2456db76f507a38d073186f1203fed6a",
    "signature": "0xb579ce4787b5aec07a7d8c6183ad8e4591da03cd7a03ae5f4e99c3187d826e533f9805e43bb73c09899d019678361d463fbe4c30b8cc09227922ebcee9bfe6811c",
    "signer": "0xcb099189A2f66796af7561B573706746f843c98c",
    "userId": "839787667"
  }
}