{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1707764",
    "entityType": "User",
    "nonce": "0xfd3cfdfb63484ff89826731e2f7c8491650b628d546542c37033c7fd572334cd",
    "signature": "0x52965eb2ae009443ebdc5620752c5cbffa00f4d7974643a9c02018810f77618512883be0b08ac1dcd2c55c57057191495c045ccf07ce26ca5b7dfa81af15318f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}