{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1075313035",
    "entityType": "Track",
    "nonce": "0x35dfa0543f3fd890f2520e09c85891980feb0ffcf25635835d28f1119c169d6d",
    "signature": "0xb88dd3bd706af8323964c69a175d56d75d6754bec9817f837516a2971793de115381568159304509ccf33d6424d7d2e2dff91fc00d3c28772d0313917f5d72851b",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}