Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c630c996c64a07ad52b51736d227c86227cbe394f1c3cfd90f92fff43d2adf68' 
  AND token = '3oXL+aVWxxLhu0ql3gI6kt0N8hxDD13+e4D4s41zXiU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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