Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8bdd436539d6ea94ed9adbf0f36fe3b831efb450b504bf7a35a62f78da926578' 
  AND token = 'qOO+mPN7AU4QbLkd1ltWf2fvr+FZHgPH8bbRHFycqpE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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