{
  "manageEntity": {
    "action": "Save",
    "entityId": "1834715737",
    "entityType": "Track",
    "nonce": "0x2be1374d798b44e975cf313be4bd41f7b92da7cd2cec81fabfe22214fbad6bfa",
    "signature": "0x37e3483d7045215333b4d48cfd481bbe7187ac4d14ba4222642e77d7b95893216cf2eaa3812fca0b71b916018ddb86c6ef39eb18be23c8f6091f9ae69ba0321f1c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}