{
  "manageEntity": {
    "action": "Create",
    "entityId": "2037099522",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":2037099522,\"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": "0xf90cfef081b47a4aa5e1b1c05342594deac1cc34901d0e29a326ffcbf3049f68",
    "signature": "0x510419758cac2dda63012ae686f62036568982f5f304f3a2e6c43f2c9f8a7e1e6b18d1fed6798ffaeaf77f060e964bcd06bc533b911c5c02d74180be80caa97b1b",
    "signer": "0xc99f8660f0b69439bc35Cb5177Cf4435e22FbB2d",
    "userId": "868524168"
  }
}