{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x1294ecce99b9b54a815c3fb391214ddc055166e853387979bbd1c56dfb7586e5",
    "signature": "0x027eb4723863fd974902139a729eb08f0ff362aa9c6ffcae4743d52505ffce7612a05bd5fbc70b7cd61cf8519606926818b32985c9cf3140d4c23547949448351c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}