{
  "manageEntity": {
    "action": "Save",
    "entityId": "1310792195",
    "entityType": "Track",
    "nonce": "0xb85093c8ac3ba5dc595b9f508950458b7a5e5fa86b2a792d9207bd7997686ef0",
    "signature": "0xfce5f941e7332c51e2f3983398160c9957707bd92ebb9209d3766b739b925d9a7978567ea3b1c0c055c709bf077dc77538adb124a3c6c408d9f8d1bb7f457eea1b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}