{
  "manageEntity": {
    "action": "Update",
    "entityId": "417803337",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x67875230a14541cd0911583a8ceed6e33613a0292a47337fdb9aeeca6a53240e",
    "signature": "0xadf394b08f3db64261d91a3cacae5684e583adb84412c619bcd62928b1830bb323b44d0a87a0db31dce23914baeca88e412fdcd6310dbd5298f6974c998dbc6b1c",
    "signer": "0xe30f44C203C5AE52Ea3b6258Ce77B4B8Ae905Ff5",
    "userId": "417803337"
  }
}