{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xd0e51300f09390f623cc6afa70e969b11d07cd5de38d80e49d8f54cb5e1c952c",
    "signature": "0x8ca7c64f377632a70ee760e65c1fc63ee95bbd27d9bfd316cf522f1159f9215758ac396a32c08c70b085e3deadc613a179bdaa743421e99b773b84fad6bdd38c1c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}