{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "315121",
    "entityType": "User",
    "nonce": "0x72d42ea0e95a66b87aae80eee56621e2d1ae04bed4ef03f804eb09a350caf890",
    "signature": "0x8435edad88897d2f4119a3e545db7f9d5ce0185a516f0a5c6e81e4ae41aa84e1315b36a313e0e9bdee6d99d5d8ee8984f61636b74cd1541d9b915976909ea5be1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}