Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0ac005bbd1ec45932d93f04b4f65b5d803b20f3245b479c960c0295258aac50b' 
  AND token = 'c4H79uCUUtJAonw4hVo3Ici15rJbs4HfOHo7n0Idpfg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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