{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x011297b5a4021c954fa931e835428cbba36a6dce65b0fd5f255d15368cd97ddf",
    "signature": "0xd898f60530ecd423f17a349c37873311db0b95e623e5c508e4fbe05ffadbab1330851344c607c2aada638e2df6cba0baf4124f08f992498d22cc1de8603da9cc1b",
    "signer": "0xc4ED754a5bBD176F596aF6d483c4b0F8A9B72530",
    "userId": "995186910"
  }
}