{
  "manageEntity": {
    "action": "Create",
    "entityId": "1488747414",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1488747414,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Alternative\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Easygoing\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"pressing_23\",\"duration\":211,\"audio_upload_id\":\"3947f57ecbd7401f08d8993106b33170\",\"track_cid\":\"baeaaaiqsecej4ckuunb5lfqxhoj5gr7qvmhm7cjolrqj3ucu5vm7fdzlkgos6\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsec4t4t2lgmxiybop3cnajdjhvftsrgbp7id7xkjtvntd3omcvzcle\",\"orig_filename\":\"pressing_23.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":155,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":116136,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsec6v7ykscwmdg46hr5qjwl4tyu7omrc47uomd23lwdjibl2se7vm6\"}}",
    "nonce": "0x29843718fbde46ed279de63ce86aa1d9199b63061cfc86e8866f9dbed27f4be2",
    "signature": "0xc36e5f0ad8cbae5b9e3d97493185f61f66b11ac01d4ae5bb9d4a4b78b8ae5cb84aa0c67296120212bdcadf13b91a101ca8bb3141a34859c3674498f4ff73cc121c",
    "signer": "0x04032370f473D46Aa4C598fc52366c5fB5915f04",
    "userId": "116136"
  }
}