{
  "manageEntity": {
    "action": "Save",
    "entityId": "113107",
    "entityType": "Track",
    "nonce": "0x410b4554aa1d18747413bdac681a3ad803e2ef72eb7b77226f5f119ae14cced8",
    "signature": "0x0b34b78d82917ee9f030fc048ca1996645dd5e009e154922b39ec686c045f2d42ad9c1c709da9c73bd53119f1ca769d9abbde9cd26cb5aa86a8521df00444a581b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}