{
  "manageEntity": {
    "action": "Update",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_contents\":[{\"timestamp\":1776707412,\"track_id\":1942370312},{\"timestamp\":1776707413,\"track_id\":2031207655},{\"timestamp\":1776707414,\"track_id\":736873779},{\"timestamp\":1776707415,\"track_id\":1643977556},{\"timestamp\":1776707416,\"track_id\":1235860255},{\"timestamp\":1776707417,\"track_id\":1975756623},{\"timestamp\":1776707418,\"track_id\":1848453217},{\"timestamp\":1776707419,\"track_id\":1542996785},{\"timestamp\":1776707420,\"track_id\":632015094},{\"timestamp\":1776707421,\"track_id\":1468817586},{\"timestamp\":1776707422,\"track_id\":1932821900},{\"timestamp\":1776707423,\"track_id\":442879207},{\"timestamp\":1776707424,\"track_id\":2066981024},{\"timestamp\":1776707425,\"track_id\":314805081},{\"timestamp\":1776707426,\"track_id\":722957434},{\"timestamp\":1776707427,\"track_id\":1435653273},{\"timestamp\":1776707428,\"track_id\":1949641169},{\"timestamp\":1776707429,\"track_id\":1042691295}]}}",
    "nonce": "0xbebc17cbbb6469c13592a4ffa76ac65a5d44dbd490e5008d3bf7d3c9a705141c",
    "signature": "0xc32a46013f34b3c1a271dce743560eb67b96d2696e7b489a8c41f7007c6ef666720dc07849e3ee76a0aa57cc75fe87f9bdf244873bd107bafce618d1f3496b8d1b",
    "signer": "0x1CE93c43F8574f553E8071e946654066188B61BC",
    "userId": "51"
  }
}