{
  "manageEntity": {
    "action": "Save",
    "entityId": "1030934116",
    "entityType": "Track",
    "nonce": "0x09ed85be0c0eb216f12a8f66a38da72a0ec932cda1c08884094320b1a0acffdd",
    "signature": "0xfd31991126146f627a32b9debc35379c965d7783a96c930089a66f0e50162be676b07ceedaa552a6a92e461a9929937c8c9368add1132268f15db6223cd3bd8b1c",
    "signer": "0x95d9E36C7e672a785E0C50fEC4d240BcAdDf7aa3",
    "userId": "575125881"
  }
}