Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4d686cec5a9ae7ff3bd17cef0544072390f395768e821b5c6c5c1ce2e256dd3d' 
  AND token = 'vbLA/Q5kP0uV+OuCN5ESsMAkWbdBPPbjKYAI7EaUils=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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