{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "354202",
    "entityType": "User",
    "nonce": "0x037e6b00445f45481d94c0856033041590960bfb7e2b0429b321f5d04239861e",
    "signature": "0x4ddca4d259d45c710574c56224356227874edc4bf6d71073518003c4c458b1ef7f57505bea60ce6d56d89ccd79f76064a16a36b7490f868ba68493b43fbab7131b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}