{
  "manageEntity": {
    "action": "Save",
    "entityId": "1733706535",
    "entityType": "Track",
    "nonce": "1787940659296430130",
    "signature": "0x84f49c7cbb1e830816746be6e77f1dae5ad5fe53ab5156e06a5ad95bb99861994e9fa195b868f720e74afb9d70d1a7902c4fdb1ebe85f787e8dbf8e77086c3e01c",
    "signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
    "userId": "827420993"
  }
}