Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '065126755cd3f6139f9091914c9ff07f20ae7f1cfc561685451ff03323b77933' 
  AND token = 'MK7JhTNMNIZzJdhvMDqsZfZFFtq8LfBh0y87vncEyvU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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