Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '10811313d14feb9c31d961959830bd95b1a72babe0ce5927b5d38136c0339d8e' 
  AND token = 'J18oDkusaqeHPJqui3ct6aTdjqjiU+Yi5faJdp0cSKE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00063

JSON explain

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