This looks like a miner payout address for AntPool (see the miner-identifications configurations: config #1, config #2, config #3, config #4)
{
"isvalid": true,
"address": "1Gp7iCzDGMZiV55Kt8uKsux6VyoHe1aJaN",
"scriptPubKey": "76a914ad7309dfc032d7f6b652e0c29ee353e63fffec6688ac",
"isscript": false,
"iswitness": false
}{
"version": 0,
"hash": "ad7309dfc032d7f6b652e0c29ee353e63fffec66"
}