{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "455557",
    "entityType": "User",
    "nonce": "0x01440ede605a01b11e9163239e944661b03b55581362a2e22360c92ea2eabf34",
    "signature": "0x60cb0a5310c33c90ab1c5f7f3338970e7f624d75ae29bab777f16c9609d0e54633dfa0fe09acfd8a82a5218bf96ddb49d7b00fd1099c1b5618fcc6767e7096931c",
    "signer": "0x4A868B813a8F5D7C187F9f07a2D7e7A24355Cf3f",
    "userId": "185302"
  }
}