{
  "manageEntity": {
    "action": "Save",
    "entityId": "1733461282",
    "entityType": "Track",
    "nonce": "0x6c79d14b293d899a79dbec0d83f8e7c28a09a9cb6ef25b6dd6a395d098c27264",
    "signature": "0xa3d0249036fa36a6996c478143f76ec4488d30f7e475366c6757bc4acd3284403dfbebb20a9bef86b99602185df95766f224168ac4c73d13907598b474236f271b",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}