Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2411e6fc58b654c68948126f8024768f8736dac5504ed76a6ba2b782f455f74e' 
  AND token = 'HSOAeatMa6u4r9lvihgJVSOEVUciWQjgHOCl60YS6FU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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