Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ab89ccafadffdb1750057e18dfe90b9a56828abe8378908b430d1031a7a36118' 
  AND token = 'Td0OCCxIs2rYEvsnBri2VGezzel8zlCUwzX0eWHQJ70=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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