Sandbox

SELECT 
  1 
FROM 
  q_lock_keys 
WHERE 
  key_id = '2fb7e69d543ed6e5970dd4e84d2138f950d4a658463aa77969a9f817007a1b86' 
  AND token = 'tM1pg3l2KNL/hwWY88qPx6AaZU0S5WQ6JiqB1EjHfa4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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