{
  "manageEntity": {
    "action": "Save",
    "entityId": "1164691230",
    "entityType": "Track",
    "nonce": "0xe92ba31c1bfe007014b3bca02fe0e3dcf8aeca59b01ad0f55ab81185ce433c58",
    "signature": "0x2c7ca6f2ce669af2a407ca0fa0ee5384f6fd50a5006b3e7236a6bf4b42f1b4c2311929349f4d08e6d481e45b4a53db8b1a0baaf5b2d2e39bf53111ea457dabc71b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}