Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '059383d8df579536bba4de75982fac9ab0623083f103c747b7ca5c47b43439e4' 
  AND token = 'eau1y/73VwIENy9vxVawetdvU1qSJZ0Jn9h8g8odvFA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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