{
  "manageEntity": {
    "action": "Save",
    "entityId": "1094020837",
    "entityType": "Track",
    "nonce": "0xd89790630ffbe90b1d4bfd52d686d5556e6b6576e8c5a6bc48fbc2e7ca7c980b",
    "signature": "0x289bbb4afb64e64966048524b19207398fe081b6f00bdbe5b5f1a609cc21dd894ac763f9844cc16dc6ca90b09f5f2a4a515aa467ed824826e4b3fa74144aa7f81c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}