{
  "manageEntity": {
    "action": "Create",
    "entityId": "544618648",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"title\":\"Once Sempai - La vaina es mejor contigo (Original Mix10).mp3\",\"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\":\"OTHER\",\"parent_track_id\":1896577952},\"owner_id\":361793,\"track_cid\":\"baeaaaiqsed57uopdelb63fkyabi7kl42qdejeihh54za3q2tbjigjer6amuqu\",\"orig_file_cid\":\"baeaaaiqseaggl4i3gmf2ydrq6wos52l7jev47qzrqzxlqvmjf335mp2vhiciy\",\"orig_filename\":\"Once Sempai - La vaina es mejor contigo (Original Mix10).mp3\",\"audio_upload_id\":\"223b1e360167c04cb85c96716dfda449\",\"duration\":305,\"bpm\":132,\"musical_key\":\"G minor\",\"audio_analysis_error_count\":0}}",
    "nonce": "0xbbd4d5b53802b85d6bcd30f85bdbabc6fdb4433ec74b4608d0c87f9a1bc58fad",
    "signature": "0x7e1ee68350f851ea921f46234d3322b8755d4bbbb367ce3ee8391cd818bcfba255e67f2aba8439066118def04c4488cf2ddd04c45c521b28a439efc7c1c625901b",
    "signer": "0x98D82BaAbDd765e8bC62e2a15fBaF40346ffB665",
    "userId": "361793"
  }
}