Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9e37572757369dfe3d12a2aae0163602eb35fb43d5445a39154663d529dcab00' 
  AND token = 'YdqvIzDQ3AU8ov4C8zKUY+iFxuKzuUGCKc6398SzhQs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00017

JSON explain

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