{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2686",
    "entityType": "User",
    "nonce": "0x65488a79e625776d42c4ea6a622b66e521a522252eab5f940af20b12f1088acb",
    "signature": "0x01616dbc7a3b9defeea04f24ad5682a818a132ba2145b7e3811ca6191b8884e26fc2c4eed95218dbd3f93b6f7d2078002492fa77b29f577277fd48f77c1edf5b1b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}