Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '118f5d622ba56ba9e9d42d07e8c39464f70dc2774a4124046f95ca9433e31603' 
  AND token = 'd/jdoAgyJkOml8EdMyU7JXxTW6jq1GGogxe4RGFxw6Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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