{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "163409",
    "entityType": "User",
    "nonce": "0x719b062f5b30b296596a3bb5f0abd1ac96f361d992fa7be676c75796edf329a1",
    "signature": "0x35d910abe4125128cdea662b30b15ecb24d37d173eeff92306bf0310d97c69bb493bc049ded1f47a7f3ad6c35bffd6204c5228b4cba6f041644ecd3fb25ef5b51b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}