{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "404",
    "entityType": "User",
    "nonce": "0xcaaac21012c0c3bf931d55817e763b7ab37553e69867b6223441ad076ffdd548",
    "signature": "0xb883a628f172128b4c3b39109d1f5b1e5861e8ae82114b4520dade1733c627d93b5270a55d5108c15c1fd757ae9e86d03e081cd711e1afc6e46f8d2847cf71111b",
    "signer": "0x689731ba1718934D8b80D53A075D7D87758Ab653",
    "userId": "350111470"
  }
}