{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "476640",
    "entityType": "Track",
    "nonce": "0xc112e9630393eac7fb7535144bd013a3b61db8395300f6e70f8a79a2dd66a596",
    "signature": "0x8aebeb1806b51dc51ebba1e00c833dee9ac06ba3950b62619eb39f6826989b7f35f41be9000d099984ec5d08d0d2efd180b20a0cfb407f482948e2e4d6fd02461b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}