{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "584680579",
    "entityType": "Track",
    "nonce": "0x16398d17b3fcd0d1d3ccbf337493caad32dc8af0d00f22211d06739640c42d28",
    "signature": "0xc89857d6a0250bb5c64326d8a97c0da6578cecfb49724f34d37a96292fec85c042cd1c3fa01654f620ad4e1d222e47db6f90414f90cc5d0e8e9f0e297d9867a31c",
    "signer": "0x5abad058d33E1C0C0A69d85BA3181678C1721765",
    "userId": "632918751"
  }
}