{
  "manageEntity": {
    "action": "Save",
    "entityId": "27234357",
    "entityType": "Track",
    "nonce": "0xa194719c5d32b37de2315293b6055bffd706e50333317e1400e1d90a7559a1f7",
    "signature": "0x72562e9126b1fdfd5b84b15d054278224524c4e10c083ae08c801ec80aa3885c5cd74113a49b7f64e463a7384ebed1cafcf0d353d2df74cea8dbd28a666f91fd1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}