Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4fb9dec4627d5769ff35ef5e0ea727a75803379addd06e1d97a63348ab3e9413' 
  AND token = '5wIaiVXE/fFQX0417FmhEz1kWXYwZ2mEEgPGnPSDUOs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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