{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "472624103",
    "entityType": "Track",
    "nonce": "0x35f9420f46bc069d14615b1beb26d8d15252a67dec3b99d9c403399ad57ae98b",
    "signature": "0x2e69d092df3794302c898613383b12272c1067ef007bd56cf4b0a5ebc7c6b8340359b71a4a5651ddbf2199b6ce6d4199b63f1343fd3bee634fa13e4b30d443661c",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}