{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "97969",
    "entityType": "Track",
    "nonce": "0x5c3491f94eac5ccb280e046ab20fad71ed76b4d428227b6ccafcaa7cc63f07c6",
    "signature": "0xe560a9bdfe466183c4868a4482e91c78c32ca84acdd45a675e14d0b2db8815f569fd9923dc8b249b440621e1b6b03ba9cfc078a28d00b6a38712032e42c883851c",
    "signer": "0x77716b11b242ACc386023E99B7e647CaCCcbb8b6",
    "userId": "126786"
  }
}