{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "43353224",
    "entityType": "User",
    "nonce": "0x9f2a1972094cfe8fc08ef6b70cab352fc3c61ea83be9e35ccef775004ba84043",
    "signature": "0xbd7e77aaa4999bf0ebf624248992cdcfb997674ed0809648959a64f48eed0db57709ef60ef6998921ffe2837daeffe1ddf6cb3bfa3f3f772f288860e301f445c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}