Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '054874bb95a0d65f8c6a606e38481e712b3b1a705ab4182ec6272f3cb2c48f3c' 
  AND token = 'JhZ9i4BULvGSOsthwaERNkP5pRBEiMQV80oViRyBtrQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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