{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44546",
    "entityType": "User",
    "nonce": "0xe303795751161dccfa285dfdcac1c665c967d8ed3a0783cc7381fc2479055004",
    "signature": "0xccbb05bef92fe6e4494f8a04502b46358dbc2477efdd519e39a169afae0d74e93ef9d641eff3df446064207a57a0c2794e7c960f555cb2779def00837c9974141c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}