I tracked it all the way back down about 5 of the chains of unconfirmed transactions from that massive transaction (449083b66531b4a38188b255ee19c224264ead728467d2da254b8f0ebf453ce8) to here:
https://blockchain.info/tx/71a3a3a2e9c3d0a8863cf1bb258e8f9233caf5833b38a33d740e52a12f295ed4They all seem to arrive at this same transaction after some truly ridiculous amount of unconfirmed transactions...
https://blockchain.info/tx/71a3a3a2e9c3d0a8863cf1bb258e8f9233caf5833b38a33d740e52a12f295ed4 did not appear to show on ANY other block explorers other than b.info, so the chances of it being mined were pretty low... so I have rebroadcast via my node and it now seems to be showing on b.info, blocktrail, btc.com and blockcypher.
the raw transaction, should you need it to broadcast it again, is:
0100000001e45514f33a40d3fad2f1aaf4954d4d9aab47335a55f7744dace2db724feeaf90010000006b483045022100c32194cfd68ad9afd8d31083f9f6c67adacb00770b3f8cdece86d9170ae7642002201849456adf4e6f3bd574eadf32b7fd49184d70ce62375dfc2fa934ea958cc321012103c36951beac30fd338333c523cd4400bdc0cf0f052aece1e9c2d28ba9731ff947ffffffff02942c0100000000001976a91493ff6a1722d952ea2e02b5455f152505910f0d4788acba929c11000000001976a914c74d1ff3dd2f13e71d2058956fd6129c919d7a0a88ac00000000
I've accelerated it using ViaBTC... and AntPool... so, hopefully, this will confirm soon... the fee isn't "great" but it isn't terrible either considering the current bitcoin network load. Once that one gets confirmed, then if b.info rebroadcasts the other transactions, they should slowly start confirming... otherwise use the "?format=hex" parameter to see the raw hex of all the unconfirmed transactions... and start rebroadcasting them ;)ie:
https://blockchain.info/tx/?format=hex
https://blockchain.info/tx/71a3a3a2e9c3d0a8863cf1bb258e8f9233caf5833b38a33d740e52a12f295ed4?format=hex
I doubt you'll find a miner to help... you're looking at easily 50-100 transactions that need to be confirmed before yours is somewhere near the top of the list!
EDIT: I've managed to rebroadcast a few transactions and they're slowly confirming... but it's going to take quite a while to get work through them all given the depth of unconfirmed parents... I suggest you contact the support of your cloud mining service and suggest they learn how "pay-to-many" batch transactions work...
If he can collate all of the TXs together, then it may be possible to contact a pool provider and see if they will confirm them all for you.
I'll try to make a list here of all of the TXs if I can.
Unconfirmed TXs: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: THIS IS NOT ALL THE LIST, JUST THE START OF THE CHAIN.
If I'm honest, it looks like this is being used to obfuscate funds so they may be likely to scam or be doing something else illegal.