{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1821859731",
    "entityType": "Track",
    "nonce": "0x6ef3dea11f8c3b0a167ac7d259ecab8b6022f2a17b850f09ba32fdfd9f7a4a1f",
    "signature": "0x2ea9fe75578946e75e1fae7945745590efa71911cc65c5fbb05cd86f13cfe002500f0b4e9685f708ef85fc248f2d5faa4fe121a40ae4364875c515307ce61d781c",
    "signer": "0xca40401031B9fe99988edB730b1F786B9A74bbe0",
    "userId": "102936647"
  }
}