{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "136844578",
    "entityType": "User",
    "nonce": "0x83a4f0e7d772c7986f6745207375c71b595bdc402dbfdc917853dc2a56f42a57",
    "signature": "0xfb9e94c3ab9629b355f703936646679639614e01b474291dde3bffd50ed3f21e4eb97fac96bdf4fb6620a59994e4f3ea32d4d17b51fc8544a34019031210e28b1c",
    "signer": "0x1011297FAB27Cd869ba8313983bF4793AB784705",
    "userId": "540848139"
  }
}