{
  "manageEntity": {
    "action": "Save",
    "entityId": "107925093",
    "entityType": "Track",
    "nonce": "1792465179933086726",
    "signature": "0x26918fdb60927356dbd8b15bd9a8958aaf281fefa6484151b85a9f1b161b38bb405b4bdc51dd7160e19b41b453cdb2f3041c02c860d5d3c1aa3d582c3b0885871b",
    "signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
    "userId": "670307808"
  }
}