Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '201a050bbad5ccd9c0d56665e6d168c0810af07945f8c0df44cbbc8e9fba7515' 
  AND token = 'wKu02KpRsR0vyn8tRze2nEfgd3T46BYI/56huISoG80=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00065

JSON explain

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