{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "482446",
    "entityType": "Track",
    "nonce": "0x541fca9774aa3dc92fe98ef564394257c34025bee25320a22caaadd8fb8b218d",
    "signature": "0x12398f4b548cd0f2b9ea03ed0ba3b76c792d61bb643885202e08d10459c0c8f17a5168ee1ef685364ec5c534061b7f2cadfc317187a007d1aca627d0362e52aa1c",
    "signer": "0x8E12224e4dDc1BdfeC3d5Bf01DB7e4Ec17403ABa",
    "userId": "627040654"
  }
}