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SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '2580b97b4029069a44fc51c42b882664c667c7bc82645b73f2e98c7649783561' 
  AND token = 'JfFnUkGa6hMMy8YCE+xs3DJj2xn3+pI7s/r5u9dm0ms=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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