{
  "manageEntity": {
    "action": "Save",
    "entityId": "1704170516",
    "entityType": "Track",
    "nonce": "0xa566304eda3274987d3aabbaa2597b1e59ef3806319508858173cb73e37e5d5a",
    "signature": "0x7eed71190d115cf32c43f75f6bc31c7211ce9b7f8a6f258fc40dd13ac9aad8714e0b29739fe72b096e76d3502ba43bea02ad41daf4ea45c8ed09316b611437481c",
    "signer": "0x7eBAab495a64FAea1f04dc59ff804bf939da7B12",
    "userId": "709077025"
  }
}