Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9420dce107a289c3fb4f17c8b3bd26ebce918ea894308bb6dfb747220cdd348d' 
  AND token = 'jjICUdUV4fQl9eFoFtXL/kcBbCtCEkikshQcQXGf2x4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00050

JSON explain

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