Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '798eb9193666a37e9a8ef51459167783fdf05a94313f8a6aaced35ad4595e0ec' 
  AND token = 'F3qNNsnEsd7Dg1CsCcVE6Kg6wPcAGHsO4c69nn/U/QM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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