{
  "manageEntity": {
    "action": "Update",
    "entityId": "336558386",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe083557175ee2699061f6992a9cb772e192502d70f3decb3ad15a7ffd274bb4c",
    "signature": "0x791ed8c8badca10d5c497080b67049944607cc232ebb291fcd35c2364a11aaf77f837d6ed78d29cf78e62450d18ed4ca6eb6e57a11acf9cec1ff98a83c50425b1c",
    "signer": "0xBe18AC3d342FECf3B94A0d895aC912A6617c5209",
    "userId": "336558386"
  }
}