{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1935175358",
    "entityType": "Track",
    "nonce": "0x225b9fbf6382c118e44a27cf3f9abc1397223066a73d1f214fb7f2afa7e23d53",
    "signature": "0xebd64fec7840f44587865cf6485f0f9403b388f59d9aa0c8e7ee9376bc3863327a1cd74af545faa7b78da32bb8066ed2f2d4e58faa43dea4aa32a44f45cb3c831c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}