Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0498bd1e9fecc805cb20594f5c7978ec0951445e6682f91b9e38d4a64b0501d1' 
  AND token = 'GmLYoMZUeTZ9REpJTZ08e/t7SuYDX30mPFZdWKzXHU8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00060

JSON explain

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