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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '80771fe2b8d6b56e45d863e3fd9242f6167e6000d894ec57ae100b1fe599ec54' 
  AND token = 'CPmtODF6Nizhv9OjLfLkAjM4D7J6siB+65HYxtbX+yI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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