{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8effe6c5694177b8065571828b509bdffd7251c7bde25ac63975a8f7b221b7ec",
    "signature": "0x82c8a1bba3dabdd04175a140bc893215624f84d4cd43177daeec820f046f09993f425447ac6b0cdb65438113d6e2402aa90f84bb69de8a4fa13088fb4df440421b",
    "signer": "0x4771d07058c4CE4ee096dc337005868Fd209ecD4",
    "userId": "117725137"
  }
}