Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '29600fcd4ef76e1d39e88fb9c5fe15a095a5068b094bef7849d76b88d40889ae' 
  AND token = 'tVosFMcENlDPE85Mjt24M5OsjkKoeCjODk1J4k+sUFk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00013

JSON explain

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