{
  "manageEntity": {
    "action": "Create",
    "entityId": "1748422682",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"title\":\"flutttr-forever-quick-160.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\":430216653},\"owner_id\":1197405,\"track_cid\":\"baeaaaiqsecbe4u5jo7cs35ek5htisu3wzynozkjwdcyvflfhmmwkpkechiiyk\",\"orig_file_cid\":\"baeaaaiqsebauifkjql464ipo6owar2pckkkbvqe725irs6ux7lyklmycubkro\",\"orig_filename\":\"flutttr-forever-quick-160.mp3\",\"audio_upload_id\":\"c72087d5f22e21b32b2a12ec10fa8758\",\"duration\":105,\"bpm\":160,\"musical_key\":\"A minor\",\"audio_analysis_error_count\":0}}",
    "nonce": "0xf431e491f5d2662ecf10acfb0debfaeefd37c4d920ec99b4e0225bd90bfbe73f",
    "signature": "0x59f87a4c5c32aff3572e8d697cc0c5099e48a7b6d69600b4e8f188184a5ce69609c11ae92eba515ca56fa48dcc7bafbb0c178ff7a506a1a7af5bdc32b8bbe01b1c",
    "signer": "0x9743F54B36f8256B8FF02dcE2dDC4Fe5DDD03Bdc",
    "userId": "1197405"
  }
}