Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '886deeaeb24d2efa506a4203458d307c4cc7ab7bd96affd407ae7e9a413d034e' 
  AND token = 'L3+02t1L/ZWL/6EOdozdWkWUro+MCGh9n9Yf7MoLYKQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00018

JSON explain

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