Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2b2a00cabf6dbb5626e60a5ae96463584652093b0bceb294282c481b9cfd37f9' 
  AND token = 'qbeZJeTQNSnhk4BR/LiX7iOHWj9YstmB5zIYnLBEttU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00020

JSON explain

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