SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '1675d899803f44177b3cc980661b94937af49f4a5d32716a2e78bfe205d2710d' 
  AND token = 'Ix7yBBgoX6gUdjY3ILheEsaDwE8paIvnDlA7z9Vr0tE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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