Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'faf35c783be87a7422091df4c34451c6391fb63d098c93aba02bb43fa3d000c5' 
  AND token = 'yGf6W9rW/gd6GBD7X8iv93PntOzyP91rPZPB71uuljQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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