{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "2029277317",
    "entityType": "Track",
    "nonce": "0xff842aaa8eccf1622722fd88695ac4810d8cc63570c9993fd445b6554e656df1",
    "signature": "0xcf24a66980f9fad1e0b352a525e9eca4c36310b0b53ccbcae517ed43226d3862602e900811aa56e338cc7fd3169e43b040e6ce58cfa6361b39e60ef3102dea681b",
    "signer": "0x4089d1751487aA665C895419F2578a6Cf33BE481",
    "userId": "728155533"
  }
}