Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5e834421ddb9334c8578efdeb12484a9c4c858a5fdeb95d4d313c4edeb3be524' 
  AND token = '6XKrHdNDvYIJX2C/6uhJlp3dqsAZ0R4+PF9NFeNUgvg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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