SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f141603059e1ee956ec74cd4ba790a024182e2b7bca689b689853aaa36178f69' 
  AND token = 'IQzYuP0U0IhliCbwyqvRh0IrvlcGstJJTxP9AyNLpvs=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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