{
  "manageEntity": {
    "action": "Save",
    "entityId": "2060045889",
    "entityType": "Track",
    "nonce": "0x04914f6ca4fe11e23f8c700cde1b392cddcbfa16c3f35651a93c1908e9427adb",
    "signature": "0x0e34548d11453f53e639ce71243973e2a4ff47d4d68de138dc70ca6d01d170762ae63ec643a9da50aeb4ba4809fb63ce0b388981b794366ff337979be33a7ffb1b",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}