SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '8410428d1b6fdc76e6053170d227ec105f7515b0d1c14fb247ae1b25fe86a63d' 
  AND token = 'KfKomLE8JTQvFVyfAAYpJmNnGLPJMZd4m9G8u2+z2lQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

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