SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '0f5264d4806d0d214a825122f45a44024561b369a481309b84031484b3bb713b' 
  AND token = 'UmxxhTZBkj1yRvl8ofzhiBEayo59Ooig3kFYUkzzjGs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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