{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x23016585977b567a6ad7fc202844ae6853f0dc1e21dd07e7cb125583dc6a3cce",
    "signature": "0xb0ab75a01a43b3a39c0ee48936078c6d4a507377184376312d1b54425d39479208734a8d5b6c08a4e9ef8ec8d3d0326dd93c1aaa8f99b7bb02855fb2a083c5df1c",
    "signer": "0x1788E4C39d3326e598F16767C69826869594E359",
    "userId": "116504833"
  }
}