Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '7a8460fd883d7880bc49d8144309a60a3faef3e3ab7bc18109c14453885bd5b1' 
  AND token = 'AsKg1y8dES/PNPzKD6FT/teZO/fMkTrAXuNb/h/ogOc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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