{
  "manageEntity": {
    "action": "Save",
    "entityId": "911182186",
    "entityType": "Track",
    "nonce": "0xf0eb5624ddebd7d32eee160579beac90f5068aedcae31ae8f75c894a5038efd5",
    "signature": "0xfdb19af9bee5128cdac6edf19a17a1acf200851b947da7516806f9f936234255144501edac62b76fb69fc32b8dd0b8916a838e4638cdad53b9742670eaf461ad1b",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}