{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "665",
    "entityType": "User",
    "nonce": "0xa0330c57a813435827629ab756bde991aafc5b08befd60adb8293c2ef4a11920",
    "signature": "0xcb0b2d4a137c8e26bd07b5389dc8e1abb140c66a93a30d7b7a4ece607b402a0359a0fea91d1cf73675cc59d65414676683730d95bf09b633917a1277c25490ad1c",
    "signer": "0x2E09706d061Da2bB66d01F583c734E89CFCd23D1",
    "userId": "14811"
  }
}