{
  "manageEntity": {
    "action": "Save",
    "entityId": "2059704284",
    "entityType": "Track",
    "nonce": "0x953bff07999e400d23622e6191beac71e92786713c1b009567b3b83e11456c76",
    "signature": "0xc75c6eeceade5c72112d75cda8aaf3feb0de99fce430ec46cb43e44392bff7e205a86409c1cbf090ab7afffebe4daf98b72dcc62a4ea6e7a342369164108d15c1b",
    "signer": "0x934E45BE36e38037811AEb6F8eD448164c45408B",
    "userId": "582278090"
  }
}