Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2bb19c111e1da05b38d00e14bbd68e301a81ed341253d4c37bfe413bdc4852a9' 
  AND token = 'OPiehzCzsPuz02t4HAc730VOzVlJq9SNhxL4wh8BEOw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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