{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "606393400",
    "entityType": "Track",
    "nonce": "0x04289379861f4783c894170fbf1f1e8dda8c0914f65f0096dd43862368695662",
    "signature": "0x24ae8c4268cebe17adc02ba98d8e52f048c9a20f0d3b2ffd0e20ac2dd463775850b67dd1bd83d69f27f14f190a5b2a41aa70a0281589dc37b9694e1a5b2b12ab1c",
    "signer": "0xdB791822A11f5aDc830669bdADa8121a4558D7A3",
    "userId": "347139808"
  }
}