Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e84b5bcd2e6e6c91842d25fddf43ae380207b109e179d131418b74c618a12f32' 
  AND token = 'TZdkEo5cbBwHvVO5Y2sjoVXtaasAR6Q4A2A84O1bXk4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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