{
  "manageEntity": {
    "action": "Save",
    "entityId": "22638084",
    "entityType": "Track",
    "nonce": "0x04bf1e35ffbcaf859400c417592befde0608acb59885c9676c621fb253aec234",
    "signature": "0x797c8771bcbcab388fe305cadc8eb32d9cede1f6ee70c1b953b18df6123810d15b0cb8e082105aa9c705795815dc7cd6b4460512274f603d54cb8764afb202941b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}