{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "386997",
    "entityType": "User",
    "nonce": "0x775fd4d93186b780ba56fa9ed9aaef66787ea50b5a3df28f9a322d530140f789",
    "signature": "0xf4b3c67b05359b1dc4356ada3eee02357edffa5da4b41f56f1c0feb2d637a0bd666f4762b50647d9bec6e9e4099d2e6f76634dfd694a97f0305e87041279c17d1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}