Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = 'eb48df0339858e0e94e909291bdf834a7bccd1dd4dac8d3fbe16bf26de1e3810' 
  AND token = 'MSrNIaBT0W+JwEoIRC/de99xjZ8hZ6vuB+B8NXFg6bM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00010

JSON explain

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