{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "154025185",
    "entityType": "User",
    "nonce": "0x05d35c1fdea51a878411155c763aa1d76a533f8705b5f22a907405165e74ff30",
    "signature": "0xfa228aa8fa9e92c56c58751a4598281466371ee4c8e630b4a107b2edd031e6bd56103aaa7cf75e2e5d460ad0bb392c5ae7dc36139f3e8154cc3ba83fc428e0131c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}