Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '92330f76eb2b18851134e7653624c1ec0a655f5bc2f01be2b7cd039e1791d05d' 
  AND token = 'D6liWH4V0KB2G8I2+bYWRmMaIusXauGY2NM7uq5ya5k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00014

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}