Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'e13270e197dd26aee824dc70bfcdfcbb55cabe4938d08ab89b829e4de569bda5' 
  AND token = 'EQY2BB0QrFluuXzCd24rRunRo93sYv/7V3yHYm6CDA0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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