{
  "manageEntity": {
    "action": "Create",
    "entityId": "1204204502",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1204204502,\"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": "0xd3f0ecfd2a004e8bdc8aa08972d1a7a060cfff32f7119f4d1087574a668e82be",
    "signature": "0xf4808b4ed966feb1e0e3648f406db21310736845e1ec0e975f8cf5bb928d93fd26dcfbc81bbf2fdffbb7cd408b2786729c98122bdd27e5008cc7c52ad47478341c",
    "signer": "0x4674e6197787113b5b2Ee26Ec19bCf15b4C0eF62",
    "userId": "16772905"
  }
}