SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '4bb991ab09b10e8e94082882b64c2ea797a003e2634cf9f029234e634f151c17' 
  AND token = 'aBPdmQ4bV3YJoWwY8V5DkfNrTNpKGfdpFVkMLR1kpdk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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