Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c10eac431ce512f77bd24e7b32e8a06d4032bc4e937051d05133cc4cd7fc5a25' 
  AND token = '7GKI23bfIUC70Mb8Z3iQJ33ADA0pNat8R6x5Syui4HI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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