{
  "manageEntity": {
    "action": "Create",
    "entityId": "1819900399",
    "entityType": "Playlist",
    "metadata": "{\"cid\":\"\",\"data\":{\"playlist_id\":1819900399,\"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": "0x92f4bf363617356d629b2ef1c777c994d7d428e5d062cd121411f70ba4311dfd",
    "signature": "0x2fa8231877c9929deffc2091cd61cd0201d0b64e57b9e72c64711abf16646bcd4ae744d13670c8c0c13ff64cf11f89e59260ae9bf23fa0d6697de68c3ac815051c",
    "signer": "0xdfcc4d06D5B8A0AF1AF77B1Ec434e5F50B625a75",
    "userId": "620921422"
  }
}