Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0aba4dbefd77eff8dd5525a3bde405d01461e1432396f295656912883aa7065d' 
  AND token = 'JV5qgxKGluFWX40kErUTKLiJKaaZJ7dc/iM6qyE2U8k=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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