{
  "manageEntity": {
    "action": "Save",
    "entityId": "359498064",
    "entityType": "Track",
    "nonce": "0xa50cb5331a421cc4539ac52e649d1bca60ee254818c38d57f1a64b456ec9f687",
    "signature": "0x656cbe6a6792b7a81790ef4a87f60780f74b33dff8fe3d81e259d7112e876d2139c73b16febcc539ca30ad5e8ee4f2bb670a931a21d0646d79609242d2fcee281c",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}