Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9092db93e0a324c034198d8d29a1e7e151fa9d842ed359e87ec892942ec97878' 
  AND token = 'Tqy7db9ONL/AHMswB8ef8CwRGHL08YW2Wz1Q9cpUTkE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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