{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "20",
    "entityType": "User",
    "nonce": "0xda87739ca418ae9cd529513540ac441df42bb44d92394f20da4cdfbd03092fad",
    "signature": "0x6d0edd28dea676fdc3ecebf33a244e563b90305d69030f192ea388fb239e2bbd7d092abbc845e69bae56ca2cad7c947ff72d47c9f89c0fa68bc6597aca8428f51c",
    "signer": "0xFa4190a6C682aEF67fAf91B437CfC23C663a9C38",
    "userId": "97982287"
  }
}