Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04d5dbeaea47a2e48ab42b07bcb00b6598db4589203e293266a4919e9e16914b' 
  AND token = 'TyZk4HP2oU5ktCi0iP8PRSBynZvyXxTUwj0f81lsCOc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00055

JSON explain

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