Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '07a4974220486140ffc1cf01e2c884b6a34de9038afa4a840570e77713dc1f71' 
  AND token = 'bcAetuDup0akbvIn1PCreN+KhS03KGY4p3fOQpsv8eM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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