{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1534049864",
    "entityType": "Track",
    "nonce": "0xf0f0e636b7c2fdb071aff7f07b70c0f478576b28a3296bb7bfed9ea0dc7943e5",
    "signature": "0xcdd1cd08840c2058810a21c1e8516dd89420f352c27fa75fda985cb66d03115379c71bb791837bc27753782e3f65ff7f5d227b9ec6ecfd7d1044a8f00b45107c1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}