Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0fb17cad39614262973a136f6898a22093617363388fbe1f6d132cb02835aeaa' 
  AND token = 'koRx6bnwmKQ9ujwbUMEGG1rIPut2le1NJbgUwjqgMow=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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