Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '13ee2e5c1262e90142dc9af785567ec608aee7c786e3698494183e3d7fe1a8cb' 
  AND token = 'eyp1RNttFsLqcq/2PR3VKrJFvHoJT6iY7+FUToVEtfs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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