Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5894214f7a9f924f69cbc937acd662846a5d56b1fb73c41c15fcecd9d41e2737' 
  AND token = 'DNWIv0LzzPGi5v3VLgN9VOSd/ddT4MRMhb2J7uNvOPw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00025

JSON explain

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