{
  "manageEntity": {
    "action": "Save",
    "entityId": "1315524930",
    "entityType": "Track",
    "nonce": "0xdebc3093c93d3ce2f3a494d65a097500d182f76b4127a6f09b01d7771dcdbc18",
    "signature": "0x6c3e61bd59b25b3bba9e7dea19a34884343e3063b91cbede6a9757ea5dbe59de2e87f6d294079b7fee9bab167b54aa2e9768e3a73e087957f0d71c620c4239541b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}