{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "237663205",
    "entityType": "Track",
    "nonce": "0x33efb66d686d1cd5abf779e04b3cc3776339dee19ff284c1177b97689891e411",
    "signature": "0x1582d7112f437edb94c35a04c91124539a9387ab34ea08e93d6b2e85756d61603f5558904e47041a822d969d68ae3f58b192bcc61fe28d3bf3d8436a6dcb56b31b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}