Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a939e18a1cc5d4b2e5c82735a0f859d6fa2cb3e3d5acbce758e5b7f16e433bb8' 
  AND token = 'Aw5JFOjmEs/ojZdDNRitHKfRyhMTuyGH8pnxqMmtxsI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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