Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '180385d4aa140882aa33fbe03070f1d008814220e1f154a432f2d7585d1a13ef' 
  AND token = 'FGFzkwANI4AlCfJRjXWom7rsVdbF39C6oMgo+QlGi4M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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