{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "206888",
    "entityType": "Track",
    "nonce": "0x16eea89cff9ecd619a3bef3fb31b2f1e5bd4036605996a50a7453c348697069c",
    "signature": "0x6b20c6f3f228177876c7a1d4cecd840cc6f92ccfb9f64e35d3a7f5404dde584f275e5bc53239aa438d2b237c0dd6932cfaa985b65abb986a11332a6385b2f07b1c",
    "signer": "0x676fdd45378cadAcd2440E1A22edc1960C58E06F",
    "userId": "133106"
  }
}