Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cb2bb82e6545c53fec9c73953c3885c75adf46aef60957973d154d1b64362f6a' 
  AND token = 'sUjsQDssezXyllWzHtXRWdd6TYwcVoDN2Z6Q77oGDlw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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