{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "2509",
    "entityType": "User",
    "nonce": "0xca12e9534dcd69dcee88074a2b80aa781859aeeb61407acedfb555ff33679490",
    "signature": "0xf03896754b6af43c0132be54333f73454bc8298f4b2e643541b2a67803af0ad85d7fc10af97f294a637a852a56cb1b07f3a23ba9f91d2bd3019f77b4cd5588b71c",
    "signer": "0xf0Cc87B4295872d65aF3f871bAb6F2eD4F688e36",
    "userId": "389958"
  }
}