SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ae897aa952c8280ef94b2b1928cbf3d4dc26679b3fea45c2e184dae8b50cc6ba' 
  AND token = 'fHCBtwHbgt5Ah3WRK+l8H/aVQW9zjRhn7eGDub6lKHY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00054

JSON explain

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