SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '130a6ce20d8b030adab7d6bef068f8a91025fb9d43823544abb9f3f9740c08ac' 
  AND token = 'nUwLPrGrygcH4bgN1h+YIsnqQJmj/ecHFeU5l62yJfc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00011

JSON explain

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