{
  "manageEntity": {
    "action": "Create",
    "entityId": "1678739187",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1678739187,\"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": "0x3a5a9ba781523987d9072376743d00b00da9c3bad618066f6ee6d3092937650b",
    "signature": "0x5048ca85ec1836fb00073132df2977d372638f0085b380fac6ef3728649a11e7665d70748f8bc4607aec54ae535288284335bc48f605faa253112b0630e082d31b",
    "signer": "0xaDC9D4604F02A3d510468234256a0815f96F0D3C",
    "userId": "198890948"
  }
}