{
  "manageEntity": {
    "action": "Create",
    "entityId": "12735183",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":12735183,\"description\":\"\",\"playlist_name\":\"My 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": "0xf7e80b115b2eec4c00801b2536e250f79a2898fa9e174f809187698d580ced19",
    "signature": "0x7ed46bae122e3d00977d733fc6c79683789bce811f363015b6457e6b2c472df544ef24aa94ddfe9405aacf64b69f5e963971c53984fe318be2b548e0361c39d91c",
    "signer": "0xf2B3167794B557266b08E8a6C3bc22d84348a85F",
    "userId": "741357219"
  }
}