{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "240171275",
    "entityType": "User",
    "nonce": "0x2b6f7ad24d51c6edbcecdc67b4480fd5b1ba21285714e144c9d7fb9797218106",
    "signature": "0x89b4e9e8830832c7b6f75f875c7e1780ce70626cd5b02ad429b059e9bc0e68076b89aec7dcf7cfc2c7baa38ece046bb7f174acc30ee81e1ad520d9c4a9cf134f1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}