Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '93c0a2ff333704d3c38da8b75e2446e300e8eff9d2094c51728b220480fff72d' 
  AND token = 'i14AX+gym9flTm5cRCwV4OfuJ18kZ9KGWmG0ljfWyac=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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