Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5c0aaeaa2ae99fae567e081771455c499874f30f0478c5d6d29af8546e207a4a' 
  AND token = 'Yk9j+pDp5pB4D2u2JvUe7AgLHb/babW1TUT3HDor4ys=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00196

JSON explain

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