{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "136954",
    "entityType": "Track",
    "nonce": "0x5a0870d71495557a78f180af59741c50e408cbe19978dcd6cb0e3d9124d318d1",
    "signature": "0xdfa8668aaad7eeb588ed373146d286208363fb1c3db3d24eeecd1a0809ba80b02fdeda7b10bb8ff95727ae3f87f5db9909deef0adc8cf48e8bdb08be07d7dbe41c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}