{
  "manageEntity": {
    "action": "Save",
    "entityId": "1096324",
    "entityType": "Track",
    "nonce": "0x88730b82d87f388d4e06eea0b01539f4fb399bdd4ad89bfb3bdf3de28a99439e",
    "signature": "0xb6570629c252cc65ce1cf3332797d551d5178a76e577f536badc9898d57340b45b0bb36afb585985e9e249c9a9daae8852c3674b6a415079d8599dde1883205c1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}