{
  "manageEntity": {
    "action": "Save",
    "entityId": "1176733250",
    "entityType": "Track",
    "nonce": "0x1fcb9542bebf0cf86cbf962e12fc43eae1d4e1e54c2043022b2fe2f8326ccc28",
    "signature": "0x117f1a10cbf82b48e2817b2d9a1e06eae181418c178bfba8787052eacb25faa505ea5d742447db5ba4f5af42dbde874ac919fa40ff705f71c8ac32671c653ef51c",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}