{
  "manageEntity": {
    "action": "Save",
    "entityId": "126411",
    "entityType": "Track",
    "nonce": "0x68f8ee53cc2446f672bb904c49180330c9d2d39e905162c6b549f08ae50fcb64",
    "signature": "0x5a8a56560ef97318f0048ba6e77e3f6a2261129e1c70b35b31aac357afae3767518d2a76cf163fe4953a00539e4cd6a6d177854e493e7023ac8d16b88b4fd6b31b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}