Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0dca569788446b4a8fc4b23b28a05c177e236b5cb71721cd109cb556e65b434b' 
  AND token = 'oYQ2ktPvHoJmY2oNJTJS6DnhVA/JY1f/Ss0vNpLOavY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00015

JSON explain

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