{
  "manageEntity": {
    "action": "Save",
    "entityId": "236370",
    "entityType": "Track",
    "nonce": "0xbc9d9236cf527bcaeaaeb7a6b0252e976ed2c6e61668df4a1b09d422f7afef13",
    "signature": "0x1500a3fa46a4a1f2ccf2920612846140ca72938c3598578a7a364e352fe1b4140018650f21cea8d4c301876ce94cd0fae067d2b7b228c9dd5905d5c3778a323f1c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}