{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325",
    "entityType": "User",
    "nonce": "0xdf2d8f7b1f2a9f28385f0b9d7239f28916e9b044036af023ee8424ddf9cda70b",
    "signature": "0xba0aaa82c883b115f991d8c34d799342d34d73f2f21509c3945dfabb4c8991864439fafc0090d66308b39833dfb73394d66d9ccedaf5814fce85c3fbedc403ec1b",
    "signer": "0x129EEFaa5407B17830948f58a044f1C49da45015",
    "userId": "858675474"
  }
}