{
  "manageEntity": {
    "action": "Save",
    "entityId": "1289562217",
    "entityType": "Track",
    "nonce": "0xf41050ef6744b5c1d874dac5a78eee334ef0afd51acee04598d0f06596178e36",
    "signature": "0x96c4b0cd58ad5fd8a32e530756fb5415c5e27ec64afeddb6d066a31f352d81f365f6da0805d442243b60ff67d1d27e8cbb5e8457c5ac5b7b144090c7df5e6dd71c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}