{
  "manageEntity": {
    "action": "Save",
    "entityId": "1699130052",
    "entityType": "Track",
    "nonce": "0xa41061a21e56dafcda27878b81a41c55441ef3bed6e6d069d6f28afec65bd163",
    "signature": "0x9387a52603172f5380058b149996b42aa09cd923a1244c1c7e9b7a7c3356e3aa10ac34afb510eacc9bcbc5c98efeb0f862c9a986d0a4e0a8385ce67ca9208ab41c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}