{
  "manageEntity": {
    "action": "Save",
    "entityId": "1924595178",
    "entityType": "Track",
    "nonce": "0x32c4c84f46e76d2c821a0b97f55f997b3bab77627039f28eb0e1772c9dc23e76",
    "signature": "0xf5596073fbdb5ecf6850f81d6688786f71017e6023f934b463a10db2e2c40e845522036806df5d2122e1b5d87514a1ca1d604e9474e46270898570022c1eb5101c",
    "signer": "0x92328BFDeD38C9a9De6E253A0CF5CB46A3B28611",
    "userId": "831117417"
  }
}