Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '04aaf285f6caea08aed9e05de52262f6aaaef741c60dd5be1df525f1c754362f' 
  AND token = 'tLo/uHr/wUgahr4cu2dKjQ2h/l6yBP8m9n4Ert+uKUw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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