{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcddda011a0ca2085acd0ea358141890d4d029b74ce415c357a32f2b6c6167a75",
    "signature": "0x5abe017e5a970951d87fe51860fd5ee9bcc1c3f9e3c9ff289c57c3533205fc2748e6ce26b857b82c061c34a3b98456ed7bb97775af0fec4c792956313b9d534f1b",
    "signer": "0x0E1419Aff1544Dde5c4eebbCfA208Df83ACdE40A",
    "userId": "564626302"
  }
}