{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1229112258",
    "entityType": "Track",
    "nonce": "0x98464379c10c2694ab33a483f07e2ec48d8b7994dd811521c7e36fbe585ebc11",
    "signature": "0xfc7e69784e5bd0af16739dd8893e064b3d086fda38f83f49a9f1bf42a774609426b9eb8708cf2a52e29143a3acd5f96fde3d284acd3b549f8f6cb95a6e8c19121b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}