{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1674010",
    "entityType": "User",
    "nonce": "0xceb5dfc3e5229c172322ad84b25179fa7412cbb5a7a3188e1d99b0c0035fce8a",
    "signature": "0x29a813f322905fd54eebb274c3ea80d3554405e961d6f8316764d5f80a9c984c78cce0329ef64e299df1e6104005c8a275916fc69704d0822af64aa99aede09b1c",
    "signer": "0x52F331C086a11941E738a6C86d9F127E934dDEB1",
    "userId": "281470566"
  }
}