Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '69425338af3ec69eb27cab218d1941a88fdbb801bcf10593f9821680e5de013a' 
  AND token = 'NJiSsstAlQN23xteXTWupg0PdXmvNFoUxxDlk3w8H3s=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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