Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '160ddbeb3bc80f7c7b5938a79ad28230b072c53f7c1c3903df5b216ee438928d' 
  AND token = 'Uur3Nc4uzU9BptWfqr8B5HEXFy8hQMQmFyuQL8fNuM8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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