Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '86317f262a6fe8e6efc5c4ab1aa3bf6f86c30f808af5e6a0089aa8078fa1eaf5' 
  AND token = 'MavQ3ycBJsF89qWon065YPjrIC4HkXsVL13wqH2A7iE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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