{
  "manageEntity": {
    "action": "Save",
    "entityId": "135508",
    "entityType": "Track",
    "nonce": "0xcace0e1d8a3d2c0fb6d384ad14cc9523b800c5353956f4d11019355435e4af05",
    "signature": "0x4a2fa138568924c9771ee240cf5d60c080d9647f89638046a7bd7e3dd0597e6d2daae1a64de499462fdba0d3ead2fcd617281c5f8a692d82c4e5d126224d15a11b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}