{
  "manageEntity": {
    "action": "Create",
    "entityId": "1222552142",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1222552142,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Hip-Hop/Rap\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Fiery\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"Contratos carniceros\",\"duration\":179,\"audio_upload_id\":\"b7d80d3918915dc49c29fd4b0decbdd2\",\"track_cid\":\"baeaaaiqsebdhcyi4s47d34465paadihlhzedefwxgpbz47t7td2xzq2cvzaxg\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedw3e2mixiaalhwiqxesol3hy45hlwcgkptmw4kuzmne4fzgfjp5e\",\"orig_filename\":\"Contratos carniceros_090514.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":83,\"is_custom_bpm\":false,\"musical_key\":\"D flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":217374,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsed25ntqdya6gmh2m5b7q2rk3rptpjox3o3p3uhkms7dzqsaxr2cvq\"}}",
    "nonce": "0x810d30e14ba6a578b3c23183f82dcfdb8a99c2a864be4999861725f61f272674",
    "signature": "0x055aa9eea7090ee18bcb898f8471b42f750abe8c83f75b57af29bde308fc1dda517125645b3bc37259fa5878732691aabdf7006ac96208daef2eda363d38dc211c",
    "signer": "0xa6E1d5f9cAB144C27c81A08F57f77081d7310d27",
    "userId": "217374"
  }
}