Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '89c80d10fb9075d541dd530db4a55272122c28163e496c52ec380f10b34fc0e7' 
  AND token = 'bYfwV6mJeSAJP8+0RTG3DQVOvEGfmn6yTDI3Y9wYGOE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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