SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '4dce1d841aea4d487643c37f1fc9ed6c8581725955de8c79093b906ab94c01df' 
  AND token = 'HvjgLMzxGWCP9gy6A/K4M2zM2d+PYIJ2P598/Rw6nBU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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