{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8e808781a4abeea16f97f7c736c9c6e5d0bfcfe8abc771c8dab0c57984820851",
    "signature": "0x728be1b0151ce99fe1fc74f817c8128c65b3e8e4a70e31b566d30d5162c129b43a0cef2256d54dfe0e8f7e69f996eb842ecaf99273a5adce8504b88fab408a9c1b",
    "signer": "0x8fFd8C007331145Bf6cca058a8A234C5aAf0E848",
    "userId": "412385415"
  }
}