Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7dc24a6337b24ff675585021f3df8fbae3eea6cdd218c75d23c99ca8c92b1e3d' 
  AND token = 'qclL05uLnqYlWZAJrTa8tnFvCkZ0O/LKwbuUODeOU0w=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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