{
  "manageEntity": {
    "action": "Create",
    "entityId": "756251747",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"description\":\"Dragons in the Backyard\",\"duration\":212,\"genre\":\"Folk\",\"mood\":\"Other\",\"orig_file_cid\":\"baeaaaiqsebuhua4eicamb52wlq2z3lrphszixw5xm3ugdi7c7ye7edvtdntuc\",\"orig_filename\":\"03-dragons-in-the-backyard.mp3\",\"owner_id\":850116073,\"tags\":\"acoustic,believing-is-funny,brevos,folk\",\"title\":\"Dragons in the Backyard\",\"track_cid\":\"baeaaaiqsecfjvjtpwfkuby3iljsfawnsuanyrzc5ze6ebb2cwz6swmy3nolfc\"}}",
    "nonce": "1792312313991706927",
    "signature": "0xb1c1f051bcc8cb23c15b95393d62396aaf67b3a7501b9d6f8c6604023338bb9e3982fbb0d1fb647b61821a5d0b3071c19833acc3c5234b9aeb923b34d19d532d1c",
    "signer": "0x7d853670b15a2150BFfd80b516C26EEd400f695a",
    "userId": "850116073"
  }
}