Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd49ed1fbfe4d085d245de30b51853c62de81383f71634d977d4fce94c803821d' 
  AND token = 'sK0DMDDtMYbcblNjQCHYkEyG8nAqfs7jvJiyD/0quso=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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