Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5aa7f69c8b0448cabf7787e1bc1693399cfbbec940787b795a266e5e24ca0e9a' 
  AND token = 'yi5hAiythw6tUA1s3q68k9j9u5zrbb03pVH37NWvhGs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00057

JSON explain

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