Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '66f35f135a1f0db9defba61073764356a6c622e5e26abb3c40bfd000b03fe1ee' 
  AND token = 'IQmpxd9qPTW2q1/s4frtVp4zrFToRLJb4PiZUPNQFy4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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