{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "613795366",
    "entityType": "Track",
    "nonce": "0x9eadc9939991a9b8e289523ab9c49b6f1b7f03c2275206ae91ce805a54758a42",
    "signature": "0x3e272c368800bb1f76a0376c81bebde486ec45e1864955eeeb39228d0097086d47c0649e40108d6fb52766c3335e968ce52e743e3b75b56e5ebff12ecb130f1e1b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}