Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c00ed2d2b8119960279e922d660a8071a7b634ee7f171c2180b29fe1ba16e13f' 
  AND token = 'AAffwlOeyUnjBuFc+R4hVa3+rSRNF2y8aIhK/t/GOYg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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