{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3085954374a55da6d2d1be585247c17c11fdb6a795931d499d27561b45803012",
    "signature": "0x8568206db1cf71132877fa0247af67817af4b228e99fb3309d80b90352781d854a9a5d2e2d11d021941bca615611d3e29cabb60b595ef0aed07079bbf73011431c",
    "signer": "0x1aafa472357705B19d36EA7090918e7B33bBF70e",
    "userId": "739631996"
  }
}