{
  "manageEntity": {
    "action": "Create",
    "entityId": "550656425",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":550656425,\"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": "0xf9909a73c3f734c68bb7ecb2b1907b875b49330a6922a9a70dd779f866eae8cf",
    "signature": "0x617fed5114c873e6d877cc715cd7c3ffc9ab76d07454266fe3009b43e6a5b432657adaa098d3841ad735b20c1e17e88161ef648e95cab4f420190d104540e0e71c",
    "signer": "0x1Ef5331d98352E3A7eb4f177ae6BbD27cA99eD1B",
    "userId": "771602835"
  }
}