{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "960347",
    "entityType": "Track",
    "nonce": "0xc00afbca127e7a755e8b615c684623c3105c522d4051b6939472469bc3af0421",
    "signature": "0x2bcca2cf80468c75a81ad0cd17d8f289c5d40a6aa96dfb55453cdcb559282b5c6fbb24a2331f91f3eb125a401b1394a8bee0c8985c56f0a23e971ba0d6f28e881c",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}