{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "781543844",
    "entityType": "User",
    "nonce": "0xf62714b439b98729380f8d29ff2e4e2459d9c9c0bd874e801c269f9bfde9da3a",
    "signature": "0xfb22dc4ef80381aaf6f6d79a5932ce0f491b2eb47d9a1699588e30ffc4c2349b7024c95396889df19fb34b26e4db74d4dde6247e7ab11001682dc9403773aa761c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}