{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdc42d494690d04ad82a36981b476d6ad8d14bff3498113bac321518ee4a355d4",
    "signature": "0x4af9b333e2897ff0c14e1382d535fdd8e9353fb7d92e805b8ac2712b9ecb4b3b19f4c150bfac29eea2f1c063570db68b9e32bdd570df9340207567e2336448cf1b",
    "signer": "0xF60e3BB1beF05ceF8C8C3333cDFbaf01c2c4F317",
    "userId": "155164047"
  }
}