{
  "manageEntity": {
    "action": "Save",
    "entityId": "36073",
    "entityType": "Track",
    "nonce": "0x065c61e544393822dd78abcd275fecc0c3bbf0bb787a58ca96d81b9ebc062666",
    "signature": "0xf1d7832eb31294d784ca5d62b01b2c8cccf9cd46e2c3281d5335dc28e3f2984200e2f6decafdb681dad61f87a637e54e2456016f7110ebda06eacd43b7990dcd1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}