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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'f2d81df0eb9cc3a308de9efc0c967b60118ff217bb2ecbdb72ff2827539ff484' 
  AND token = 'wdZufITHTSgx8nUPVmAqBSg2K+bD7ZwKQobi2z7AtkI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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