{
  "manageEntity": {
    "action": "Save",
    "entityId": "1032607133",
    "entityType": "Track",
    "nonce": "0x0c64053f03496ebd98782bee310b88ba3e1c88bf01a561ca244ff50dabcbe369",
    "signature": "0x2b5b7468111ef83a34f37e9a13cc0c9cddf233a7be33aaf72932c42a262cadd541d30b96721df818794db70bb8e9d986d1628cf30b2993065685db43deb6aef41b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}