Sandbox

SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = 'c3decc9b38f9e4237ae6175d08af28e220a16de33b4b804d32cf8f77ff7705ed' 
  AND token = 'KqW79Mk/yIt02IR3hYy5HGG6qbMkXzNeF0jJPAGI7TE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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