{
  "manageEntity": {
    "action": "Save",
    "entityId": "1013022892",
    "entityType": "Track",
    "nonce": "0x3bb13d8cc5d108aa826f84d211312ecdd933c0785beadbb3f7966fef28de2ff1",
    "signature": "0x74939cef1b070b23937db31191e207e6b0731f791c43800d8f07674da4a31eff407d7d270623eabf6042d99a5bd6b26a81ae7491ac5824474c7dd9a3f1cecd491c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}