Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f63867617f23d1a2f71ed06b84ad66ae0a259cd692acfcdf8759926bd8b18d0f' 
  AND token = 'sqlhdaO2dSwhvuGwvQVlRTV+hFX0H320YooN8yLDSNo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}