{
  "manageEntity": {
    "action": "Save",
    "entityId": "86626",
    "entityType": "Track",
    "nonce": "0x996cb92be5f7ec34c211ba00d296bd9bfab045e86c1cb477f7978fff9106181c",
    "signature": "0x94d16ef60ab046dc779790b40d1f85598013987bf47336e44c25196ede16ff4e1b176b08331fa97dbf719d6958cdeb5660cc54b82aff6e7e954a185f9ddd188a1c",
    "signer": "0x2F7db4C1AE3922aD0f32CEdED1870278dd17b64b",
    "userId": "467213409"
  }
}