{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "11178",
    "entityType": "User",
    "nonce": "0x900c4242a1eef37b26de723614ba66f170a95797a50e242ee507a0cb8b9ece44",
    "signature": "0xbf9c5dd9f5cec4b31be35519a30b8be7972e4ac687a2817bfbd4e004089821ae3d2ec4b2e4a69267bc2bda8f563ca67973e08e2ce4b9cc371ae3791b7fb27e651b",
    "signer": "0x573531cF89E122b68c33D7bDBb16f89E13c9D1d6",
    "userId": "406399634"
  }
}