Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a04f4e43873374e11ae1e41c37b3a93ed574cede97ec35c8d6324aba5bef99af' 
  AND token = '+kiS2NLByycnlnoePXQ+d0EmlpJU9C+d3ixHcBHME9k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00016

JSON explain

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