Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0229db42771ad56f8830c47e3259835569d460f300019c5bb9f571a14350d3ac' 
  AND token = 'tdoVeSwT+dX0rMPSeinvsw27ppli5LtULM5gPQZvUDk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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