Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2ede1b075e692adb21e2238a6ccd77613ce0aa64f6023496e89c0d81a5c52344' 
  AND token = 'ciH43zmwTQcFZexOhyL4QT3P8TwN6ewUcQ2crWY0kP4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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