Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '98774eb8e7d99da78e8c6ea9dcae0caba03b6277ce1875745d73a66a5a8b02db' 
  AND token = 'oeMOP/ZX1uvImJdAHpaIKvPSqG2Y1efl53psSDnnhUs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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