Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '9b5169ef1ad23f7113185c1938cd751ab80cd85bd0c9cb88fc67be41cf931454' 
  AND token = 'FOUw8Dx8Jg7EaUYbFEwhK7JN/obXXAuoFJ1P0LI4Rgk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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