Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0f90cddc26d912172d2ffb1b2f183151556f2ab27103ffc0f342535135e0c8d4' 
  AND token = 'DV0wcLhsWGrDKnsIb8hCYU9Ip295x49yoxGz1mfscdY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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