{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "358471",
    "entityType": "User",
    "nonce": "0xe461d05182d4c56eaf515973ac5b2aa1e8df01c41ef966777b731065f2bc353c",
    "signature": "0xa24f9f823a52745f3e944370afd00d291c095992347a77405f46dcf8653b78297018fe93f8248bc250ad7af12700d68de02033684bfab51f634e0d4cf76501791c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}