Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c9646b02568909a302257fc51042a10416d281bc3d6855c7e1a22f40986e8c1e' 
  AND token = 'q4GeMZMlLcIIXXzh6Ja5iGzA9OwMPFcTU2jXJwfbxq4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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