{
        "transaction_id": "0xbdcd0541acec6ec0d15e34fddd9b6df289d60a33121a43c4f645c1e52ca20a10", // string - default: null
        "server_group": 4, int - default: null
        "address": "0xc6622aff60e5ab64d340d72809f1de6dffaf6e0f", // string - default: not null | to be set by user: where does he want his tokens delivered ?
        "created": 1520347003056, // int - set automatically by backend
        "payment_reference": "asdf" //string - default: not null | to be set by fractal: put payment reference ID provided by payment provider
        "user_id": "asdf", // string - default: not null  | to be set by fractal: which user bought the tokens?
        "token_amount": "96770000000000000000", // string -  default: not null | token amount to deliver, including 18 decimals
        "work_status": "innocent", // string - default: "innocent"  | to be set by token delivery script
        "updated": 1520507058271, // int - set automatically by backend
        "objectId": "0000B7C6-197A-98C1-FFA9-54DC5C1B0F00", // string - set automatically by backend
        "payment_method": "CC",
        "___class": "ico_transactions" // string - default: not null | to be set by fractal, must be BTC for BTC payments, CC for credit card, ETH for ether buyers
    }