{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd9423e809d1dbc0727715f8c0084a6dbde700f2f6c8762cbb09ae677780585ae",
    "signature": "0x9637f6ba87ce5fa147a386a9255d70fa02fdbfcf55a888f350e40842127a267c5f7514ff51640b613cf1bfca7d58ac05a97c49154c339a98ace3d90b0495182f1b",
    "signer": "0x6524Ae2fF85fFD135132d60c159b8679bb16b6E9",
    "userId": "812066720"
  }
}