Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5b64c33ba9057d086c660bcae94ebb3c6769dd162a501551d3cf286ccd1302ea' 
  AND token = 'DugTCozAARDly4PAKXjU26f2DVyJyg+4OmRrqT95S60=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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