Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8595ea9a347d0626ce5db3d65a529df31aed040d748dcec55cc27121229f19d5' 
  AND token = 'BY3qGYoUogyZQulUGpE1ZIh6uG1AqW86TtoUT2Ka1SY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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