{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "734706254",
    "entityType": "Track",
    "nonce": "0xe4ffef0bdcedf7af4df7b8251da561fd6ed16e38f2a9c303c3d017a9ef10558c",
    "signature": "0x2c3a6aee90ae076ee29744e1eaf97229a79dfaa1f086681bda41524c4ff4e93830fc93ddca687bf8310da5c38855ea582d7119194e06c30c4eb72712da7136cb1c",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}