Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '60d23e8100f19fadd616a8ad8729a6373d23e8c73319093cfd291ea351753ab4' 
  AND token = 'd7JCx53Kokqrf3u3oulQaRBHEoR6lpAGg7Hd5KtTTQU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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