{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "4",
    "entityType": "User",
    "nonce": "0xc3be9720b0089fd6769490ed01a1faf623d07590f8483fb1bc115fde3a1a9d28",
    "signature": "0xe98a0a14d61f33e19252785feb4a3bb959789f81c6d91ca933d892b75abf315a4ab3a247027f4396fc559f040955f7c36e56da16626f70ee832a74f9fec995951c",
    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}