{
  "manageEntity": {
    "action": "Save",
    "entityId": "1032756726",
    "entityType": "Track",
    "nonce": "0x78e99b97978ba7943f8b265353d83f5c70f3cf32863ce1e177d00d22a449e6b4",
    "signature": "0x4db8ac587698448bc6924a8ade5814b7d8af1ea8b1f58fdb0961fc95d9baa41d2ffb60ce72e805d698969af412f252cd24f33563325fc64973312d6468d14ed41b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}