{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x213bee7f9703b960bda9550a8f621b168199e35d6925c78e3ce68e188097245e",
    "signature": "0x51f9b005d7f63254d41147197b80503f1ccd97833ac0c55748cc4b4339eaeaf305656c9bf88e9977c4400b8de62a80a7dd6b644e0b7e2fa6dccf389233fc21041c",
    "signer": "0x705C3Be1F27A9694A390A0a58287440a6b43349E",
    "userId": "193978537"
  }
}