Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2418194c7e53ae801bc7cea821d7fba9acb288f6f9e591a9a3024a60805792f6' 
  AND token = 'Q0Mwym9p/V70no5Pa8ve/upHBeTYChZeEKhPYPFtcnY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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