{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x90eb4bcc428dd4cc97442765738104e5895bf72e7c68c7977a4364a5b0d0414a",
    "signature": "0xa1bbf19e79a3026e811f25bb49a30a27a77dbd64ac7609101938a7088e443f6135a5f58ab29182707ca509b0b385067741ba2721ab03995e26caed6cbc7d20651c",
    "signer": "0xb3AB45037Ab1be51e0a0f3B19208897E2c476BE0",
    "userId": "533358180"
  }
}