{
  "manageEntity": {
    "action": "Create",
    "entityId": "721203513",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":721203513,\"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": "0x7c695689f985074847e0c969444378247c44bcce69e6dc3c613343ce3b912454",
    "signature": "0x7ebac250f7f42eab4a03c4b578429784b9200867b94deac20c50b7e140d0f68e30afe4d1d7c2fde26014221c4d30f435106a18759cf2250d94421daae51096511b",
    "signer": "0x61F949f996483EB7EAf30b9bDA9010A86bAe9BeF",
    "userId": "733158140"
  }
}