{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "231",
    "entityType": "User",
    "nonce": "0x0fd280beacdd0a8ad0ba99eda8a0bab99353aa5dd1d8971d753613e283ed728b",
    "signature": "0x0ef40feb8d0d1b86480cc69ac5610a77de2ef90e08b5bcb793f445128baffbf0639ba15b24cb741f54ae9b52ea213bbbda659ded92b8799a0a595aa699b727db1c",
    "signer": "0x9837C03EAdfA74365Cdf4e01e6840D356104bFab",
    "userId": "911622928"
  }
}