Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'eb63c5deee595a4f374757e86825c3e2b8166230ea16f85c9f69bc118d627fb4' 
  AND token = 'csq5P4pYSnH7+/B5ZU6V+5UYDA2dDaT19g/TJ5mk/qI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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