{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbffa3feffc506252603ead5ba77afdc85ea661a161702ff36484a890d3b86672",
    "signature": "0xe9fe719a2d74897ca4d22cfe93d138de886cdce147850564dad67a043da0d48140ef017469790964f2d832d541e7b21158ec4b6afeb83349ea2c77ed9befcc311c",
    "signer": "0xE727CbFb9A37eca68A1407D140597aD8ec810d58",
    "userId": "12804287"
  }
}