{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x907b4e984ec91606d1cfc2445438be231a76e288838f650e467e60ee38f1e488",
    "signature": "0x57bfa0dd8b993b2d55ff10b1a15ecd4fb5d8692e7b8a84d403d19560809d17bb03c44169d3e47338ae36dfbb138aaf042aea9944f4d02a1ef8a2ddb6a6ba0bac1b",
    "signer": "0xe350C34Bd61E28095CB695A68D2584A13E4eFFB1",
    "userId": "906766154"
  }
}