{
  "manageEntity": {
    "action": "Create",
    "entityId": "1644804102",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1644804102,\"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": "0x0edcc7f8a8c8208c54d582dedeaf8da0e98ddfcfc18a9313f0401abe6fefb3b3",
    "signature": "0x5767408aed08e49d37dd0e566c7d3b078fb19ff908540bad7023f01e4d5ca69914ad806df4a731ad4743ef407bb3eefe3b4d9567df5ff88d93a799d00235471c1b",
    "signer": "0xA8e52aFd8802350BDa4e4B5a2381A2B9CE419652",
    "userId": "983122516"
  }
}