{
  "manageEntity": {
    "action": "Create",
    "entityId": "323305442",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":323305442,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Audiobooks\",\"isrc\":\"\",\"is_unlisted\":true,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"MINDFULNESS-MASSAGE-MEDITIATION-DEMO\",\"duration\":73,\"audio_upload_id\":\"91062080a68d66311673b9c9ed180ddb\",\"track_cid\":\"baeaaaiqsedmd3mnro2bjycmmbgrp6fsaenztcsq3zq33wvmzbcn2kncwmyemo\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedbyummgqfyrghh3mankcpqnbbg4wmgxsv32ctd23ow4ngai3kg6y\",\"orig_filename\":\"MINDFULNESS-MASSAGE-MEDITIATION-DEMO.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":95,\"is_custom_bpm\":false,\"musical_key\":\"F minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":226115115,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebd6zttipljqouzthxf4ytmr6jkff3nayw45qpetrer3pfx4javog\"}}",
    "nonce": "0x29488ab51afe9d240d7d97b6211d3f2f68128e67b4a883909341b2ba215ac46b",
    "signature": "0x258c1206f73f8792dcab05670645e0b68d94c98844671f29c0855d6d9ffc06dd13c2a108ecce3c78a0c316416d3e511708d4293fb2dd5de429fe402c4a07e0d41b",
    "signer": "0x97e51cDFE99eA27F4AbA03cA0284A008db5c693b",
    "userId": "226115115"
  }
}