Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '3cfab445ab8913d41aec437f1f99b9e02dfc08a92ad0b70bb7869b1b286415ba' 
  AND token = 'GR0Tb1qpgLwb78ngCqlzZ0AHgLmJrSyHnXiSD7zgkpU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00110

JSON explain

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