{
  "manageEntity": {
    "action": "Save",
    "entityId": "113248586",
    "entityType": "Track",
    "nonce": "0xe351e7e093d8abe9e4a5316ba12ba873d21d78c6b70b728bfac1ac9eb4d361e1",
    "signature": "0x1614c1671a47219418ae86b919ca1b9edab27fc5d6d590c014acddb85a2f2f9f7d07f43e25e7a65a18c08ef15ea673d509133ebbc845da60821e6f400e769fa31b",
    "signer": "0xDC5D8e6d43489811098d4d3D31fB7D6585c9Bb31",
    "userId": "735980234"
  }
}