{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "930135450",
    "entityType": "Track",
    "nonce": "0xa42a2096081518f59a6793b52ff14961fb2400e2dd002ab6e0d8877035d8eb8d",
    "signature": "0xee363519371c150e12f04ca632386076d902f2c2516c1e2c02873046019c1282034b3d7cf26648436b9cf4e63ce52fdc1797432e3550ccdb639e7501334a3e031b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}