{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "330374208",
    "entityType": "User",
    "nonce": "0xf539e626f34dffd503b06f09b101ee5d3511369dc8393bb6bd578a9e8dfe3587",
    "signature": "0x92acf33d4e2d10f88fe3607fb24df5727c6fd9e5fa6778ccc77444ca8a3b32d15a1c06f4aab1495fa1efaf18a8846a7d8bb935d4a08a14dc592ad975ab8cfc851b",
    "signer": "0x866CB73184a8420C302e3850B610761F882C4DDE",
    "userId": "166428182"
  }
}