{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "301508",
    "entityType": "User",
    "nonce": "0x2cf0d94921142808578e80668aed6a59e5aae507b4697c9d5bd627214b9ead15",
    "signature": "0x0de28d257ea18feb230a2cd10eb312d1677663ed6a8abba1ebff6ff3f9c8419d767caf67915cb9d2b2ba358b7978374e895cac1d6ab3bca5cea95b85d2e6e8c31b",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}