{
  "manageEntity": {
    "action": "Create",
    "entityId": "2019213834",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"title\":\"10 8bit arps.wav\",\"is_stream_gated\":false,\"is_unlisted\":false,\"field_visibility\":{\"genre\":true,\"mood\":true,\"tags\":true,\"share\":true,\"play_count\":true},\"is_downloadable\":true,\"stem_of\":{\"category\":\"MELODIC_LEAD\",\"parent_track_id\":1913430723},\"owner_id\":362018966,\"track_cid\":\"baeaaaiqsecegzh7tf2db2qxd6qne2kwuem5ii4jgxsgymhg4iannsbbm2psdo\",\"orig_file_cid\":\"baeaaaiqsedm4e2a6vcf2svzsshnsptsj65dwduoikjoxtdgpgwpo4f2i5dxzo\",\"orig_filename\":\"10 8bit arps.wav\",\"audio_upload_id\":\"96b0f8e4a9f78e4ee1aaa6f6def60779\",\"duration\":169,\"bpm\":154,\"musical_key\":\"E flat major\",\"audio_analysis_error_count\":0}}",
    "nonce": "0x699753273495c71b19f00867e95c551915e2e35c2161b77d89cf0896b3ab8645",
    "signature": "0x261273145c704d63328f8b22b9141e3f09cf35700a095ae19c33bde65cd097ad17f72b942c9463af5a6d6af840b541e755537a85a31b111df5e36e104344a3d21c",
    "signer": "0x53dC09835BD2744d082224C0f3479C0FB3DFDc81",
    "userId": "362018966"
  }
}