{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81539",
    "entityType": "User",
    "nonce": "0x5155dd2178a43588205aa010f5b4637f8e6d32879637d11d551484448fb2f5a7",
    "signature": "0xcb05355c69001e2eb6cd3fa7a73cbfcab285b14e3ff0c42977471fd5387923e223ed86267843f187bcf6f64f1778a60f783e8d3ff525365049af643144a1ec3f1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}