{
  "manageEntity": {
    "action": "Create",
    "entityId": "674637982",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"\",\"playlist_name\":\"New Playlist\",\"is_private\":true,\"cover_art_cid\":\"\",\"ddex_release_ids\":null,\"ddex_app\":\"\",\"upc\":\"\",\"artists\":null,\"copyright_line\":null,\"producer_copyright_line\":null,\"parental_warning_type\":null,\"is_image_autogenerated\":false,\"playlist_contents\":[],\"playlist_image_sizes_multihash\":\"\"}}",
    "nonce": "0x009ff176d14edb772369b650f93329650302b5f9dee2fc23943ed3da9da25e61",
    "signature": "0x7b61991a4cd567edcafc422a898183840645deae5e93c1acfa10f89116fc36816d4c8342fed77c96241a3760cf615f05ceec0fa0b2d6d756e424800618105f171b",
    "signer": "0xf3b31F8aBe42659b04E4740Dc37f6343c57F1137",
    "userId": "881527822"
  }
}