{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105381",
    "entityType": "User",
    "nonce": "0xb6998a060491dd8868cdb67c86dd7c8b5b50bd61b7b56e89ceb413a6f54fb49d",
    "signature": "0x2d061ba4c3c126e4724e41e5dd2574a5662143de4dbbe0e5861fd9140ab40682400d5e91eab99450f018f9325c4863acab4d583f55ba19fcd0b25c932a092d111c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}