{
  "manageEntity": {
    "action": "Save",
    "entityId": "1432687624",
    "entityType": "Track",
    "nonce": "0xf465b9e60bb5287b0fe8137131147cbd7e419f2aaac69bec64ab434454d3f8d6",
    "signature": "0x6ae00fb9b8fabffc7893d2ac7d5ba0d95d479313564838c62db6179bd2add9217b4cbf77ba7f9809606d66c726e560515823d766ced3ac31e0c6bd1775b9de641b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}