{
  "manageEntity": {
    "action": "Save",
    "entityId": "92592",
    "entityType": "Track",
    "nonce": "0x7faa2715ac2bcb448554d0353736d022e4b3b942904d6f9c76d60fa32a6681e9",
    "signature": "0xc9ad17e1a6060d0c805edaa430c07fee387d75e75ba67d1785935178b56fbf922127ebb4b0900b28e946930a0c54c3a6f29531421cbdfedc5751163d4a3084391b",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}