{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdf8f4f9c650ca829e29c08776bf9fb2d813d935356da82316e185ab11b6e79c3",
    "signature": "0x7e0c588eb469d40506d780d86bf050442a93d824d4e40832af4fe4ec8669180341b6af37e424977cfa81a47eca049ad695d22f068d847638dba0dc28b4d337521c",
    "signer": "0xac9398fE3324BB093c993C791Db4a36624f5a248",
    "userId": "223946715"
  }
}