{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "715",
    "entityType": "User",
    "nonce": "0xa3dd766997e3aa20202a4a59354245ed4fa0232591501d1f36a02cd7d788a7bd",
    "signature": "0x169edf4967a76fa59aef8dc07851a827a279d8094d4d18d8578c5719e2b6b68656c85ce0aa42b675eb09aab956f3e1e9e86b24745d66b6d240665117c64df8dc1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}