{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "385517",
    "entityType": "User",
    "nonce": "0xaf08b9fee9f799d6f94f860a9cbe5bdbf487f64b85417de1a3dcfef83c4ebac9",
    "signature": "0x2fd789a10223e7f5f0a72646cf771b8eaef81804bc1b083b8b7e435852f20fea187c23a6ddd6507b562e08f07238140b3f8348eb19c92b9c9541a06be4cc67541b",
    "signer": "0x2Df83D15c880275a0138820cE2009Fc85eF32C65",
    "userId": "107618708"
  }
}