{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "3387",
    "entityType": "User",
    "nonce": "0x41932addf68437b908d9f03f60f70f7326770770ccb6d4334ffd64a7bd729116",
    "signature": "0x3a5053fcf291829fbaba488fee6e6195fc2d773fa1a13489891282142b5bfefe5f3d883a6676774c76e1912afa933b61008deb603e3c775535eed864f265b5361b",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}