Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'cbd1ba480aed7495e7a69318169f017cc2d9bd7ccf2f1acd38e6399a21fd5c06' 
  AND token = '8N5e124osygYzl0NMgwZyZrrHwdwa6onIrWbz8QXhWI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00009

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}