Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2180d8105c87b32527ad0fe1bd9b5094bc1e5aee11cf365b25700844c6cb3c02' 
  AND token = 'eNYmDEaIE6LZFke4n70TUUxVYFax8/TysHxSA8oxb0U=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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