{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "301091",
    "entityType": "User",
    "nonce": "0x8a6697c5fcfda98ec4806ea60a59595133842bad944871aa145a10c0f1a77885",
    "signature": "0xb4240eab62a04c210c33a8baec02970e4d3b9ad87ccc39c2426a9fcb6f66579d2ce816afae753a16e0bb2fb6afa1c10a1d9712a1564fe155b860c8e1a0dda91a1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}