Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '11da663852f6684ebe095875dfcfb295aa58e1cc65509a7192be2d342eba5196' 
  AND token = 'tCYhECO3LI9r5cg92ga4svSVMxKbdxzPnmaf+vyLJmg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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