Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '01ffba46948811e8b4ea05d481ff290ecedbc47853b85396451dca6df9bc4a73' 
  AND token = 'T5VJCPHfuxfKcIFlP0Wqv/AVfyKF64lMhRUHP1rImUM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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