Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2000be27f502642bc4e01b647a266d4c8bac8d1a401616a429a81879c6942955' 
  AND token = 'sojmbsfF6HZza0dsT6VD/mHjRTJ9sKhTvdckCySDpug=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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