Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e222f4ed617cba6c78f606c3c1329e0cb55b3587bbe90b760563e87ec9b2cc39' 
  AND token = 'uJhyMBC2KvIKIba/592/Xw7uc3LGPpZuoZAmqX7h//0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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