{
  "manageEntity": {
    "action": "Create",
    "entityId": "473753855",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":473753855,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-04-01T07:00:25.000Z\",\"title\":\"Gramatik - Dolphin Shaped Town\",\"duration\":282,\"audio_upload_id\":\"eb57d9097ffd46ac31faa5528b444452\",\"track_cid\":\"baeaaaiqsebwgphzeemtyuj4jwsppzb7llvncnoihhnchrav7nn3h6kjtkkdte\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseanibi2ugfyjui7bdwdik2wmvmxfdyzf5mhtfso4nnxubzemumwzi\",\"orig_filename\":\"09 Gramatik - Dolphin Shaped Town.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":104,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":41804,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsecjiewd5t7wodvsdewbo2c4khzjqk76vecifegj6lafew5uygq6uq\"}}",
    "nonce": "0xb66789eef1e955e400848fe6e36cb928a0b5547726e1ccdf047e6db87b81ffed",
    "signature": "0xc6dbeefa8db6a79b6caa3ad09017e860e79d8e0825fce42bd55b6b894af5ef7b1d55e50f5c61eacd0110e1cbb053e551a73909c67dd1d6c87a9a041391299acd1b",
    "signer": "0x51C747e7437C025eb47a63843f019C0ff2253474",
    "userId": "41804"
  }
}