{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "610954",
    "entityType": "Track",
    "nonce": "0x8259c623cc8eeeb828024176700d455288a41a9ed1223c0ddeecbd48d14c892e",
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    "signer": "0xCD8Ad6BBF16D2B91C83B8C5b2Fc6b5e6f28d1825",
    "userId": "334015"
  }
}