{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xc08bf2f38a99636c97d208accbbe721a5c7b871fed02e0e6619f1c4fa1b6b954",
    "signature": "0x0ba860f8c2ebff332e0485c8292de090d0fa7ae37f75689d26ed67684848c4077079020e2006077cb5ee33b6fc57bd2ae2f74f62340f57bc7da09b9b7c0dca0e1c",
    "signer": "0xb5902ac1A81A6B795210DdEB50e8F1FdaC9aed97",
    "userId": "842982090"
  }
}