{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "194544",
    "entityType": "User",
    "nonce": "0x3c55979f6171b602ca6da05685299330564297de8d64d3260caa5e0d3391e523",
    "signature": "0x86f7f584ffc897ee56451caaeed958b2bd6c97eede36428139e59fad774e4ba00030c28ba9b2303537b2b6b36ca4bd8065c075813b9f1ba14beae616ac46aa7c1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}