{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x95416d01fb40db508d63eb2b8b56af4717323f6989c01d6ff7ebf266ea150435",
    "signature": "0x2d635b353addd3142e6a09e37e9e79eda08befb5fa82a9ae6c1effe29f21ea3f33269591d44836568ee1b83f7469fede0963734dfbd8478fafefeb7c020788cd1b",
    "signer": "0xe7Bb4Ba5f405D9CF084b6a7950A13FA33BE40dd6",
    "userId": "326147815"
  }
}