Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c4affad23b4ae44cb278ecd255f9a8601c9278742d0cc9699db1aff89a1c51e0' 
  AND token = 'VGQxz2KKzmi879KvvbKgzclTw44bMQidvZGRkbqpAlM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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