{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1969246",
    "entityType": "User",
    "nonce": "0xfdf666fd54be976b48e36f47ba553f78d65e161e9c7ae781394c476422e14ee1",
    "signature": "0x8f669b243d89ce572ac6f505869a07e7cc52ecd74195166b1d03529aa57a6369536e6719c3dad05a4613c134c4d27e6a539a055751c74131c7185509195483481b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}