{
  "manageEntity": {
    "action": "Save",
    "entityId": "96365284",
    "entityType": "Track",
    "nonce": "0xfd611e5175b2ac3071dab599b40c02c14d6f4e4a751a915d40e19341b671dc4b",
    "signature": "0x3b27af03b25e5673135cadb964397337028a5cb36a82c5d57b44f99ee9ca6e56059234ebcccc67ab1f556db33938258d5efd9f55618d6e6cd0a1852952351e3a1c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}