{
  "manageEntity": {
    "action": "Create",
    "entityId": "630480547",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":630480547,\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[]}}",
    "nonce": "0x022e9e91bdd0bd2eaf2483eedfe44474480a24f28be4d72b7953a175dff2e360",
    "signature": "0x0301adc6108759017e25bbcde43a57178d0297236cf03a4570cbd4a662471c4e2e8d15f5ed36346f82e5d5bdff36600158ed341634de1758b15060a7c33571791c",
    "signer": "0x1f88579743A2A8CBA2c13A9e48b23BC6DCE0cF62",
    "userId": "471232983"
  }
}