{
  "manageEntity": {
    "action": "Unsave",
    "entityId": "1433207356",
    "entityType": "Track",
    "nonce": "0x6dbe52527c4705a783c2b0676158dc3c84774625591f610790758309d585fdbe",
    "signature": "0x121c5ebceba894ae6b246b83a16022a9a8959681041f73b75ec3f2bceef1e77821f43bf60bf166a41c641af531f0e72152a8f8af4c8013cd20ab1752acb2a20e1b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}