Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bd326059c32b08a3385b8a6a842f35caeb89e778120aadc286e83d58934b35c3' 
  AND token = 'jXuJtSSYstMfLXDaD/mdgQYN7gMUQrdoN4YBpqNzjqU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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