Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd3672bb2670022e4319c4cc536947a806d0aafbf1aec62fbeb38d0e11f4efd1d' 
  AND token = 'tuxgsj+xdIMETJc7t+/H3si+/v6MoKAKPcVr0gI39eE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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