{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe80aa5ba55c8461806ac3c73dbd738751899a660f5c303eaf3520337c9303bba",
    "signature": "0x04bee84c8a7b717af63b015550b00a25fcdea457c56f3ad0f31d7cee7a3ff9b85e5645be32e59fbe1f5b0f3f9c5d72bc475f73dc3e34ace96eadc06dffb009501b",
    "signer": "0x191B6Fd957f517929075f1e49822818e792FF015",
    "userId": "74652"
  }
}