Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '219e37c7e98d91d36ae246b213fec00b3649d614396211446277b5c743062203' 
  AND token = 'HTahCzwvI5rE0M5P3FiZCX8zyw9m8QE0ziS/twPRIcM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00048

JSON explain

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