{
  "manageEntity": {
    "action": "Save",
    "entityId": "179104699",
    "entityType": "Track",
    "nonce": "0x5f2b102bbf21532edc039ed3031c499ed7dc6d9a5106ad1d1fe3f9c428292505",
    "signature": "0x4b637d681555e0a91c47e676ae89f25b66fc3fd2dc623de44e4b6d9de39c748005a40b8cc211db5d4b503bddcb09766544d0a8363958ebcb9133f39facffef2b1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}