Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '34c51d806273869255d6fa91a0912997ab62d3f4349f5a58e372d907f9537d69' 
  AND token = 'CQbYpxv0MUx6i10560V41dmzGf9Y9cIVn1Pe7p2g4W8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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