Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '96ea0e66b3a477e8cdf3cf35c3ea72368b5e761dcdf55df0a94f3b05c24662ef' 
  AND token = 'iw4DMt2u0jttbVFctTRrv6LKQjO/2yhAG7316YU4WTY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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