Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0609d4c3f76eede402c2195c5ad32a44bf8ac9ef38626c8a8291b7a9d8d55685' 
  AND token = 'SS6ujRgn5MwHMSnh62T49r8qsUIHC7h/5TcbfSTHBq8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00064

JSON explain

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