SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd60e968a5d7982abd2f132c0b3060d9e9ac444b3c06125a6f7550cea78f5edab' 
  AND token = 'T5IGRG5SaUZwJxUV/nqy0gp3zO+yqqwfs2bNc3FHzVk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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