Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1314e79c63d349f7c470867267655d0d7e85b8a88c085351732693241e53116a' 
  AND token = 'D01YJMABwyPhn8YESgB0+z+oUD2Wdu3DnsCUKL+uN5M=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00065

JSON explain

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