{
  "manageEntity": {
    "action": "Create",
    "entityId": "619977772",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":619977772,\"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": "0x644cdc2abc7ec38ad888f82fcdfde3ec9fe840037f1bd01c1e9ae0413d14e691",
    "signature": "0x1d697805d62401460d4d4974c0c5cee7430d2d10491ac579683b6bd7cf13606c3169939bd44a72318a412257894e81b3b207ffd728c910fd00515580201a57ad1b",
    "signer": "0x54c11E98317FC90475e191c33b86bda098B57A59",
    "userId": "182045363"
  }
}