{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xab5c3159e7168c580602e172d88f2668046c8dcde024b329b7a3633f826fc76d",
    "signature": "0x806dcf4f15567819c5ad86762f2b855bd8576f00d5ba437cb2b42d688eeae89f3386d57a27e4647e9ff1fb45a76a6f7b3f40b878d45752fcc08b2828b25888721b",
    "signer": "0x90D649f24D80ffa4231f650fBE75e9Af27283497",
    "userId": "367633290"
  }
}