{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "218208488",
    "entityType": "Track",
    "nonce": "0x8bbcbbde85896f4364d7c54add5bfdff904d579b1ffeb0fcd4490503faf98c62",
    "signature": "0x301d06bff92c117beedbd9188c053a634bc25e937cb692fc676c6065ca3c030d7119defa88ac8fa8245a0a6c15c147e7eed3abd9c2111a2c9caab0d9dce85f7b1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}