Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'febeb34ff2b2f630659db882183a37d6c8d967d487d7380adc49d0f5ecf32b95' 
  AND token = '2ee1ybh2qXajVAGTMrMf8gCm26juntaT0gt7sZ5VrpY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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