{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "584186978",
    "entityType": "User",
    "nonce": "0xe68a5685093055498b9c3606faf86541dce00c315e16a6fc7947cf8c42ced748",
    "signature": "0x159f8035ad5e4af3c203a61e6d6eada4b76644312a6da7bcf5d25343ee278a962fa20483ed05c8c3577f8b51bfb7e917f779384a1ab524dddceb528fdb8b74931c",
    "signer": "0xE18f37f193553F7bFB76f10C386b65159Ae304E0",
    "userId": "4510"
  }
}