{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1bf8e25560242b19e177e905d7c0ed0aeeda85d0d8556ebfb1bff178f97e75a8",
    "signature": "0x0d63f509757c56bd394f6ad60a35fd1ce5d3b31bb6fd1c9cc37d2d7f77f2c7f00bc9f26fff6a0545c3c373647fc9c55ee6e9490c35ceb7aa7db66430e7600b0c1c",
    "signer": "0x6afE92A505eBa420AFdE630C5f47297092d5aE1d",
    "userId": "821853974"
  }
}