Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '22c58578b4c6340885d4ac238f24cd021eecacd0c66ea3663428b256bf9f5f70' 
  AND token = 'eAHzbxsmgjCuoo9c9xv/kweccRQFiUgnb3TTLguFBjQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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