{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2850",
    "entityType": "User",
    "nonce": "0xce99c1b6b1690bcd9129c26ef9b7a70c1956299c74ee26bc476b05c0f23374cf",
    "signature": "0x7a05a84f300ebaace4da98fd6426a8165e265f0053ddeede4c63cf6590306781691c56e490ac7d4e134366517a8ae0852c14cef3ce2a6c01b6ae5539aa4e37fb1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}