Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '694d72831992020987d4e254dd9fbb6077b439ba47ff6502aff1e54862e20127' 
  AND token = 'QWy37gI1p5yL4L2rd8su74OKWU/fXDU6cC5ROW8TYMA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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