{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "145083",
    "entityType": "User",
    "nonce": "0xdaf5475f4f0c38594bd6ecf0da0fc7718b58a91955270bd944e78eef6bd9f71f",
    "signature": "0xd5a346fa13bd4a11edb461adb974315a4ab500f51a4374f49cf0322ca5e6e135163eaf28f28df19d7cf6a759fc9e4feddec33898c1435477ff545bef7fe255c61c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}