Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'c01ed4bb67db77374e96a404165edf5f8b34b77e016be23e64d68b8f37d7c014' 
  AND token = 'gpqnsaSBCuwxIgaIWv+y8HocCCwvTpdQzNmyO355J4Y=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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