{
  "manageEntity": {
    "action": "Save",
    "entityId": "109058416",
    "entityType": "Track",
    "nonce": "0xa9f3a1c451149dc10201ce5dabaac0ce9c3b1d50e3839c3d0712640d60811760",
    "signature": "0x596ea7e385761ae6a9be190d245a43034fde1eb1ea60d694d3051879dcfa16623c6f2fa6ade4e5eda55b9551996c6685ddb07938078427ea9f524f3c3b10265d1b",
    "signer": "0x65b2681094e762CAD2349e6C1e2FbC8d54b9c046",
    "userId": "11153747"
  }
}