{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "714646433",
    "entityType": "User",
    "nonce": "0x22d552a76078ffd47f2421b4110c53dd86f1e5775a953e17894bbdc856c0bb3d",
    "signature": "0xd214ce15f5665ec020c771472f015c3b92dce63970847a557892c21c6919f579214c67e4f7ab961f14c6062d74a97d7e1a9d9e5e67ad5f5d0722d2f61a89f9351b",
    "signer": "0x7F52035F6FD8a71240adf35768244d51512553c8",
    "userId": "550902409"
  }
}