Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '360e8b4228a67ac1fb080ac6e14a7cfb75d8e08236e1b108b10b08c909657300' 
  AND token = '+Zzg0G7xkKNRiuyvFaczB6AaV90lmCk/fRjHFi/DySA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00044

JSON explain

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