{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "329513359",
    "entityType": "User",
    "nonce": "0x293771f0c7d935e475215cea36099d20c8f5afcf9cac5b76b212ab86df681cf0",
    "signature": "0x8113d88d6f0b6f70d0fe0a0fc9be41b11302b722ea33dafcad6bfc2282ea95d1370f4df2e266b8e3d5acccabefcf1b51e9281d965e8ac427d88e24319383eb551c",
    "signer": "0x9de29362DF595E6949CaA2820c5c28c3D6b0CEe1",
    "userId": "857551474"
  }
}