Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a26433c8b58037fc530bba75d0687e8651f6bca6e0bd23f8215a688f935a29b7' 
  AND token = 'VulnCg5nTspv3petvKfml3blQOzKzduwGey93bkd90Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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