{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe253ec4bc24b2213221e697783827feed9356e628c52e62425071b306ab90aa7",
    "signature": "0x048e556036671a1f54989abd4a23c8823c97a5e9a464f375776611bdc2a3417445b0bcc1e642c63cd33024b6598d7bbe734d45e5142ef7df3926ddc0af984cec1b",
    "signer": "0x109fE98a9688F2ca8E1b3174Aa26f06bC64D2a80",
    "userId": "163826447"
  }
}