{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73594244",
    "entityType": "User",
    "nonce": "0x57eedf09a523f5134320bb81c739077778cc538ed85c2e19ee4dccc69f9e3a3c",
    "signature": "0xbc03ab043bc6b29a38b3586c8cfb0f272470ee1e8f85c5b45e997a170578df7f18a601167215b501d95f1134a08174475aa2b956915f8ebd8b5a8b28811e02001c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}