{
  "manageEntity": {
    "action": "Save",
    "entityId": "1461608007",
    "entityType": "Track",
    "nonce": "0xad8861011b79f4a75e2679c31fe6173349f6208bfb6e9ec4a5ae6e49c366e60c",
    "signature": "0x9671f3c0173ef74d46a93f88edccaf33ab4e636c7e17c69eff7eb7626b1fd03a42db9e63f498488676c2c74aecc494d49af5fc4f57204b743c9dc87f4f5de49c1b",
    "signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
    "userId": "633924738"
  }
}