Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5a4674f0a68e397b0c45b409a89624c6447f4d7d392be3f612132bc9cd405cf7' 
  AND token = 'A1v5GcMAGinWLfKAFrWHd2ALRJaDhD+FNlbd5pXHnAU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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