{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "764280596",
    "entityType": "Track",
    "nonce": "0x9b8d6346ab7d9e3c4f6d85f83b441b7a0b77d22a28996399c9ea9e6c423a71ec",
    "signature": "0x303d7cb86fa94c7d6b28f12f79f834ab2001b87da1266e1b50cdb4822bb9e7706256f023fba9503c87490517d9541e20d7522d8e2b252e5285ea88d3dd6856a51c",
    "signer": "0x849938DF063059EbF6d907f55E72C083347C9343",
    "userId": "796529120"
  }
}