{
  "manageEntity": {
    "action": "Save",
    "entityId": "793225500",
    "entityType": "Track",
    "nonce": "0xf8f03e0a35f2f10f096f2ed2340be9e54400a458e773533f3c8f195900c54b6d",
    "signature": "0xf87cd2699cde43d2c509fa1608c4978c541309c4d4267d21be26f076bd5f42cd4b250a82a24ee0cadfb3e3395c922395d98e38d56bfc3bfda0a4d3133e44557e1c",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}