{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "387411556",
    "entityType": "User",
    "nonce": "0xa91127a41adf45f240b1279d09049d564170004b511459b70659324efb93cc9e",
    "signature": "0xb2f76831cb5c79cdacf250b775438873b13b12535e391e64f75231f23abc213e4b38216de848561680919d35d98e9e30b1814aff979ea8ff79e3656a720a4cb61b",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}