{
  "manageEntity": {
    "action": "Save",
    "entityId": "92699071",
    "entityType": "Track",
    "nonce": "0xd55e0a5956b998f05ba9643589db0d4fd304a6402b78a42a2405dfc0486b4f4b",
    "signature": "0x2225484940f65576ccb65d3705088d34c355942701137c267483b23698197fbf0fd740f670c8a9ac7fb4d7952d58d0dc6e54513a3e58eafd25f9851ce2bb1ce41c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}