{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "993795264",
    "entityType": "User",
    "nonce": "0x9a3fa4dc56edd3202236decbd6dd2f1fdc4775b81f593940d8d1e43488631ffa",
    "signature": "0x8bc7914ec056f486e3a7d8b1f63a4a973b970cc130d2899394ff73229d1ef6be0eef2948cef1d6bb07052c5a7dca86df7909445241b36486efc1dbc3438b73e81c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}