Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '596ab0fecf0d5dd7c099513539259ac2e56f4179b85df24d56aed1924c4d6987' 
  AND token = 'NWMfmnQ+hy9m6dSMIL96Qii4hktC1egqUkkRGsLCcmw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00027

JSON explain

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