Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62923dbc48438a3882cb0e3718ee2867db0f00767594faf0e59edabc47e4b423' 
  AND token = 'VI4uRNGL4EwHGKt4DMzwJvXB3uOsF0TSo1ksua0HneU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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