{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "294",
    "entityType": "User",
    "nonce": "0x2919e1853078993f19d86ba07190cd1d6d1c536ff5ce942790640db429f286d3",
    "signature": "0xac86d131f190690217a1d325106e3b6ce3abbe844073447a7b4f89836d1f0fd712b70a17242d648e42e64160f1139f13dd9a4fbdb9808fac1feccfb948a9118f1c",
    "signer": "0x1A0e34aBD5374BDd677c5de4D5D9718089cB05Eb",
    "userId": "644286186"
  }
}