{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1512820",
    "entityType": "User",
    "nonce": "0x41fa5368df36286e7855e879f903d44f136e125ef0c943e1ba7bc6861d2a71ce",
    "signature": "0xc7defcd270176857ae4a00f06059bde2c450116df97076c8c68abe1d84ad1979776cff67db3ea0dc5a896677ef6b8cd950654f15d52e17d901f7af3e951f082b1b",
    "signer": "0x24844077bE6bb825c0548F36B4EFA030d05Ee1CD",
    "userId": "601282125"
  }
}