{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "271957",
    "entityType": "User",
    "nonce": "0x01e7b178fba5393a7aed8442c0638f34ac1c3622c2a604e4eb52d2536552aa45",
    "signature": "0x0223976fcb6ea314443cf10577e6996b84834ba3ac13e2e02692e8c179fa610d5e6a33bb90e8908521a3e8fe02e18c83b43a365a7d383678ce95c9073e380b941b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}