{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9f75b7eebe07003909642e155d7f96e642e58e9c45f0c9f70e1bc7062ea3b91a",
    "signature": "0x8c0180bfcfd65fe088624c06b5a91663e41ca78c965b901f6cd1c9953eb0c80b6784e678a5cc8c6e257893caaa0209b63e90ef8899727fe5e56fd05f811bc9011b",
    "signer": "0x6268f3F36E0fe8D3E139bC6d32d7539887721848",
    "userId": "418312750"
  }
}