{
  "manageEntity": {
    "action": "Save",
    "entityId": "1095486216",
    "entityType": "Track",
    "nonce": "0x954e339e81fc7bd28211b6f90f0d0dc1b1b2b8374e89f757248fd3985913b2f5",
    "signature": "0x0106394677f0a9b2695e586778c405cf1936773d7fae8633f502875dfd5f5db423ba144e58f18f9c5c99561eab8bbb2ffeb04ca4357ed9e42a82dd8c34fcaca51b",
    "signer": "0x06Ad5789cE045C5B0AeB97849051a7385CA95B4a",
    "userId": "270209897"
  }
}