{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1683",
    "entityType": "User",
    "nonce": "0x025b53f99cb9b7ca864040a886f72e33129cb1281fdefae75c83fe0dbc0f8850",
    "signature": "0x848b67b0c268e230e82ca8f37c40db59aedf751274e8531bb7fcc338ae77e70457b16e41bd099e1acfcd2174bbcfd12e169e05596e0b4e1c755eb22c24afb8f71c",
    "signer": "0x7C2169544c0568cB3b210f320356B6A77E891F30",
    "userId": "495616082"
  }
}