Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '126ff981d41202c986b722b38bfc8fef847b7d4e4b699dbff2d73fc8dcb17217' 
  AND token = 'u4f2rc7dTWsfAmruhbgLMXFxQfBu6KyB6IfH7HBcP4E=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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