Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1b59070c5502468014e4d93c1e338bd395b74c049ef4957edebd18682b1e56d4' 
  AND token = 'he1Z0Q8CK7PPA8+wqKRdRF8q8IeWlAiHche/vnorgDY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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