{
  "manageEntity": {
    "action": "Save",
    "entityId": "1836377196",
    "entityType": "Track",
    "nonce": "0xe82b723b8ecbf71baf7c57a31e99508d3f911a0c9672f61f88b51a761669df3f",
    "signature": "0x9c32f014ffdc2de028be54aad5c7ecd0d51ced2626e2bf57b677027f7ebce8317cbea8f48598e169187349a232e9e506ea7192ba6ad5866a5ca7f705e13ed14d1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}