Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '095de47416303cceef37bc1e5d4d5d78f10ba19ad7791ed46f7f20ae5dd85b8f' 
  AND token = 'TE+xajVtiyBFZSwuh0VRT7dYG0Md0ydBb460rV2PB7k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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