Sandbox

SELECT 
  1 
FROM 
  vi_lock_keys 
WHERE 
  key_id = '13cc068c853703ede60a78039ca425375a259953fca555e73bf76c2493416400' 
  AND token = 'O3xRvC8OrV9FRjJEzdwJLKkat+cMkBvKYWPbu7eNebI=' 
  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"
    }
  }
}