Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'a00a4796c57d37321d80009ba77b641cd601ea3d2ef52f3032066794c6272e7d' 
  AND token = 'aKPdJAAL/g2IjiqAQamt206eeSqqxJSnS0J8AfRIKOU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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