{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0fd1d67511193034fc75f5695cc1a86356fee1e65e84f9af7ecbe85ac5cc50f6",
    "signature": "0x0dd3d2f3bd8642ac190ba8d469b91498891841cf887819508bd720e0f5c3f10338c88f29496810db422695abe97ddb4e9367a3dcc351fdedf44385f887e248611c",
    "signer": "0x314B34d84ac639781f18e99AF88fDbDf46842878",
    "userId": "83275454"
  }
}