{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "740883",
    "entityType": "User",
    "nonce": "0x7732d7ea14a576d7a44c60a05e472d5c40c2d0eeb86a1da1acc659639aa9e6aa",
    "signature": "0xb0fdcb8aed9eb808b29f9a5abbedbace0d83399e981e22702213eea29e44c1543f6c347ebe7d857f9cf527950505792ef1df897907b74d8f8b5538d6b20012da1c",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}