{
  "manageEntity": {
    "action": "Save",
    "entityId": "317110331",
    "entityType": "Track",
    "nonce": "0xeb118f7b5c8661bcf847c1ecd83634727058a12a886a96e57f48f4ba6708b1f0",
    "signature": "0xcce6470d5bc6241b8aae8ee5c4616199d71afe5cdb3c652ece9fd32bd79289fd0bab3a2ddb1335995e5331b148b6b1a857bb852a797c2b636f61d3e28bba19e81b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}