{
  "manageEntity": {
    "action": "Save",
    "entityId": "26425",
    "entityType": "Track",
    "nonce": "0x5cef041bd8377157826bf14e1c040ed10b32fc2a2d87cd3c7ff4152bc729a26b",
    "signature": "0x1ea443f1a2abb4d939b43b0fb5006c6bfff82fb32f1696dec56516a58f452de34721470045befb477a88142f282206a154dc4729aca1878e6223d098cc440b5e1b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}