{
  "manageEntity": {
    "action": "Save",
    "entityId": "88858504",
    "entityType": "Track",
    "nonce": "0xadc109c11e433907cd4f095b15d4770b42ea20971b1788078704373995f4cc31",
    "signature": "0x715ce7d07dcecacc25934cb417ad99ea323421eaa8485ae252b296b0db369349798ad7e7c8c7c1aaa3af63f0f0cea517fe99a20d88a5e763d56186d18b0dd1721c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}