{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2749",
    "entityType": "User",
    "nonce": "0x247354d89de9a04901c3da8cfba5dc8ed3c23162cb0dc8e4443082b48972f988",
    "signature": "0xafa6a12a96db84b1dbf760da320db068e6e3ff74e31f955772144a8d52965a9d0d78a72d55e1b470c9e3fcff598bb3d7de621e11bae0643040a81d47b872169d1b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}